a
a ===> an
a ===> a / an
a ===> miles / kilometres an hour
abandon
abandon ===> abandoned
abandon ===> abandonment
abbreviation
abbreviation ===> abbreviate
abbreviation ===> abbreviated
abbreviation ===> unabbreviated
able
able ===> ability
able ===> unable
able ===> inability
able ===> able-bodied
able ===> disabled
able ===> enable
able ===> disability
able ===> disable
able ===> enabled
able ===> to the best of one’s ability / abilities
abnormal
abnormal ===> abnormality
abnormal ===> abnormally
aboard
abolish
abolish ===> abolition
abortion
abortion ===> abort
abortion ===> aborted
abortion ===> abortionist
abound
abound ===> abundance
abound ===> abundant
abound ===> abundantly
abound ===> in abundance
about
about ===> how about…? / what about…?
about ===> about / be about to do sth
above
above ===> above all
above ===> above board
above ===> be above one
abreast
abreast ===> be / keep abreast of
abroad
abroad ===> go abroad
abrupt
abrupt ===> abruptly
abrupt ===> abruptness
absent
absent ===> absence
absent ===> absentee
absent ===> absenteeism
absent ===> absent oneself (from…)
absent ===> absent-minded
absolute
absolute ===> absolutely
absolute ===> absolutely!
absolute ===> decree absolute
absorb
absorb ===> absorption
absorb ===> be absorbed in sth
absorb ===> absorbent
absorb ===> shock absorber
abstract
abstract ===> abstraction
abstract ===> in the abstract
absurd
absurd ===> absurdity
absurd ===> absurdly
abundance
abundance ===> abundant
abundance ===> abundantly
abundance ===> in abundance
abuse
abuse ===> abusive
abuse ===> abusively
academic
academic ===> academy
academic ===> academically
accelerate
accelerate ===> acceleration
accelerate ===> accelerator
accelerate ===> decelerate
accelerate ===> deceleration
accent
accept
accept ===> acceptance
accept ===> acceptable
accept ===> unacceptable
accept ===> accepted
accept ===> acceptability
accept ===> acceptably
accept ===> unacceptably
access
access ===> accessible
access ===> accessibility
access ===> inaccessible
accessory
accident
accident ===> by accident
accident ===> accidental
accident ===> accidentally
accident ===> accident-prone
accident ===> accident and emergency
accommodation
accommodation ===> accommodate
accompany
accompany ===> accompaniment
accompany ===> accompanying
accomplish
accomplish ===> accomplishment
accomplish ===> accomplished
accord
accord ===> accordance
accord ===> accordingly
accord ===> of one’s own accord
accord ===> in accord with
accord ===> in accordance with
accord ===> with one accord
according to
account
account ===> accound
account ===> accounts
account ===> bank account
account ===> accountant
account ===> accounting
account ===> accountancy
account ===> deposit account
account ===> savings account
account ===> account for
account ===> by all accounts
account ===> on account of
account ===> on no account
account ===> take into account
account ===> take account of
account ===> accountable
account ===> accountability
account ===> unaccountable
account ===> hold to account
account ===> call to account
accumulate
accumulate ===> cumulative
accumulate ===> accumulation
accumulate ===> cumulatively
accurate
accurate ===> accurately
accurate ===> accuracy
accurate ===> inaccurate
accurate ===> inaccuracy
accurate ===> inaccurately
accuse
accuse ===> accuse sb of sth
accuse ===> accusation
accuse ===> accused
accuse ===> accuser
accustom
accustom ===> accustomed
accustom ===> unaccustomed
ache
ache ===> backache
ache ===> earache
ache ===> headache
ache ===> stomach ache
ache ===> toothache
ache ===> bellyache
ache ===> heartache
achieve
achieve ===> achievement
achieve ===> achiever
achieve ===> achievable
acid
acid ===> acidic
acid ===> acidify
acid ===> acidity
acid ===> nitric acid
acid ===> sulphuric acid
acid ===> sulfuric acid
acknowledge
acknowledge ===> acknowledgment / acknowledgement
acoustic
acoustic ===> acoustics
acoustic ===> acoustically
acquaint
acquaint ===> acquaintance
acquire
acquire ===> acquisition
acquire ===> acquired
acquire ===> acquisitive
acre
acre ===> acreage
across
act
act ===> action
act ===> take action
act ===> in / out of action
act ===> inaction
act ===> act on
act ===> act up
act ===> in the act (of)
act ===> active
act ===> activity
act ===> actively
act ===> activate
act ===> activist
act ===> activation
act ===> activism
act ===> inactive
act ===> inactivity
act ===> deactivate
act ===> deactivated
act ===> reactivate
act ===> counteract
act ===> counteraction
act ===> interaction
act ===> interact
act ===> interactive
act ===> proactive
act ===> reaction
act ===> react
act ===> reactor
act ===> reactive
act ===> overreact
act ===> overreaction
act ===> actor
act ===> actress
act ===> acting
act ===> act out
act ===> enact
act ===> enactment
actual
actual ===> actually
acute
acute ===> acutely
adapt
adapt ===> adaptation
adapt ===> adaptive
adapt ===> adaptable
adapt ===> unadaptable
ad
ad ===> classified ad
ad ===> small ad
add
add ===> addition
add ===> added
add ===> additive
add ===> add in
add ===> add on
add ===> add up
add ===> add up to
add ===> additional
add ===> in addition (to)
add ===> additionally
addict
addict ===> addicted
addict ===> addiction
addict ===> addictive
addict ===> drug addict
addict ===> drug addiction
addict ===> non-addictive
address
address ===> addressed
adequate
adequate ===> adequately
adequate ===> inadequate
adequate ===> inadequacy
adequate ===> adequacy
adequate ===> inadequately
adhere
adhere ===> adherence
adhere ===> adhesion
adhere ===> adhesive
adhere ===> adherent
adjacent
adjective
adjective ===> adjectival
adjoin
adjoin ===> adjoining
adjourn
adjourn ===> adjournment
adjust
adjust ===> adjustment
adjust ===> adjustable
administer
administer ===> administration
administer ===> administrative
administer ===> administrator
admiral
admiral ===> admiralty
admire
admire ===> admiration
admire ===> admirable
admire ===> admirably
admire ===> admirer
admire ===> admiring
admire ===> admiringly
admit
admit ===> admission
admit ===> admittedly
admit ===> admittance
adolescence
adolescence ===> adolescent
adopt
adopt ===> adoption
adopt ===> adopted
adopt ===> adoptive
adore
adore ===> adoration
adore ===> adoring
adore ===> adoringly
adorn
adorn ===> adornment
adorn ===> adorned
adorn ===> unadorned
adult
adult ===> adulthood
adultery
adultery ===> adulterous
adultery ===> adulterer
advance
advance ===> advanced
advance ===> in advance (of)
advance ===> advancement
advantage
advantage ===> advantageous
advantage ===> advantageously
advantage ===> take advantage of sb / sth
advantage ===> to sb’s advantage
advantage ===> disadvantage
advantage ===> disadvantaged
advantage ===> disadvantageous
advent
adventure
adventure ===> adventurous
adventure ===> adventurer
adventure ===> unadventurous
adventure ===> misadventure
adverb
adverse
adverse ===> adversely
adverse ===> adversary
adverse ===> adversity
adverse ===> adversarial
advertise
advertise ===> advertisement
advertise ===> ad
advertise ===> advert
advertise ===> advertising
advertise ===> advertiser
advertise ===> advertising agency
advice
advice ===> advise
advice ===> adviser / advisor
advice ===> advisory
advice ===> advisable
advice ===> advisedly
advocate
advocate ===> advocacy
aerial
aeroplane
aeroplane ===> airplane
aeroplane ===> plane
aeroplane ===> by plane
aesthetic
aesthetic ===> esthetic
aesthetic ===> aesthetically
aesthetic ===> esthetically
affair
affair ===> current affairs
affair ===> state of affairs
affect
affection
affection ===> affectionate
affection ===> affectionately
affection ===> unaffectionate
affiliation
affiliation ===> affiliate
affiliation ===> affiliated
affiliation ===> unaffiliated
affirm
affirm ===> affirmative
affirm ===> affirmation
affluent
affluent ===> affluence
afford
afford ===> affordable
afford ===> unaffordable
afraid
afraid ===> unafraid
afraid ===> I’m afraid I …
afraid ===> I’m afraid not!
after
after ===> after all
after ===> afterlife
after ===> (for) ever after
aftermath
afternoon
afternoon ===> good afternoon
afterwards
afterwards ===> afterward
again
again ===> again and again
again ===> now and again
again ===> every now and again
again ===> over and over again
again ===> time and (time) again
against
against ===> be against sb / sth
age
age ===> aged
age ===> old age
age ===> ageing
age ===> aging
age ===> middle age
age ===> middle-aged
age ===> ages / for ages
age ===> at the age of …
age ===> age-old
age ===> teenager
age ===> teenage
agency
agency ===> agent
agent
agent ===> travel agent
agent ===> newsagent
agent ===> advertising agency
agent ===> secret agent
agent ===> dating agency
agent ===> estate agent
agent ===> real estate agent
agenda
aggressive
aggressive ===> aggression
aggressive ===> aggressively
aggressive ===> aggressor
ago
agony
agony ===> agonize
agony ===> agonized
agony ===> agonizing
agony ===> agony aunt
agree
agree ===> agreement
agree ===> agreed
agree ===> agreeable
agree ===> disagree
agree ===> disagreement
agree ===> disagreeable
agree ===> gentleman’s agreement
agriculture
agriculture ===> agricultural
ah!
ah! ===> ah!/ahem!
ahead
ahead ===> ahead of
ahead ===> get ahead (of)
ahead ===> go ahead
aid
aid ===> first aid
aid ===> legal aid
aid ===> aide
AIDS
AIDS ===> AIDS / aids
aim
aim ===> aimless
aim ===> aimlessly
aim ===> take aim
air
air ===> air-conditioning
air ===> air-conditioned
air ===> airtight
air ===> clear the air
air ===> in the air
air ===> open-air
air ===> up in the air
air ===> by air
air ===> mid-air
air ===> aircraft
air ===> aeroplane
air ===> airplane
air ===> airport
air ===> aircraft carrier
air ===> air force
air ===> air hostess
air ===> airline
air ===> airmail
air ===> air raid
air ===> airborne
air ===> airfield
air ===> airliner
air ===> airman
air ===> airstrike
air ===> airstrip
air ===> airing
air ===> on (the) air
air ===> off (the) air
aircraft
aircraft ===> aircraft carrier
airline
airline ===> airliner
airplane
airplane ===> aeroplane
airplane ===> plane
airplane ===> by plane
airport
aisle
akin
alarm
alarm ===> alarm clock
alarm ===> fire alarm
alarm ===> burglar alarm
alarm ===> alarming
alarm ===> alarmed
alas!
albeit
album
alcohol
alcohol ===> alcoholic
alcohol ===> alcoholism
alcohol ===> non-alcoholic
ale
ale ===> ginger ale
alert
alert ===> on the alert
algebra
algebra ===> algebraic
algorithm
alien
alien ===> alienate
alien ===> alienation
align
align ===> alignment
align ===> non-aligned
alike
alike ===> lookalike
alive
all
all ===> all right / alright
all ===> above all
all ===> after all
all ===> all but
all ===> all in all
all ===> all over
all ===> at all
all ===> for all
all ===> all the same
all ===> in all
allege
allege ===> allegation
allege ===> alleged
allege ===> allegedly
allegiance
alleviate
alleviate ===> alleviation
alley
alley ===> alleyway
alpine
ally
ally ===> alliance
ally ===> allied
allocate
allocate ===> allocation
allocate ===> allocated
allow
allow ===> allowed
allow ===> disallow
allow ===> allowance
all right
all right ===> alright
all right ===> all right / alright
almighty
almost
alone
alone ===> leave / let alone
along
along ===> alongside
along ===> all along
along ===> along with
aloud
alphabet
alphabet ===> alphebetical
alphabet ===> alphabetically
alphabet ===> alphabetical order
already
also
altar
alter
alter ===> alteration
alter ===> altered
alter ===> unaltered
alternate
alternate ===> alternation
alternate ===> alternately
alternative
alternative ===> alternatively
alternative ===> have no alternative but…
although
altitude
altogether
aluminium
aluminium ===> aluminum
always
a.m.
a.m. ===> a.m./A.M.
amass
amateur
amateur ===> amateurish
amaze
amaze ===> amazing
amaze ===> amazed
amaze ===> amazement
amaze ===> amazingly
ambassador
ambiguity
ambiguity ===> ambiguous
ambiguity ===> unambiguous
ambiguity ===> unambiguously
ambition
ambition ===> ambitious
ambition ===> ambitiously
ambition ===> unambitious
ambulance
amend
amend ===> amendment
amid
amid ===> amidst
ammunition
ammunition ===> ammo
among
among ===> amongst
among ===> among / amongst
amount
amount ===> amount to
ample
ample ===> amply
amuse
amuse ===> amusement
amuse ===> amused
amuse ===> amusing
an
analogy
analogy ===> analogous
analyse
analyse ===> analyze
analyse ===> analysis
analyse ===> analyst
analyse ===> analytic / analytical
analyse ===> psychoanalysis
analyse ===> psychoanalytic
analyse ===> psychoanalyst
anatomy
anatomy ===> anatomical
anatomy ===> anatomically
anatomy ===> anatomist
ancestor
ancestor ===> ancestral
ancestor ===> ancestry
anchor
anchor ===> anchored
ancient
and
and ===> &
and ===> and / or
and ===> and so on
angel
angel ===> angelic
angel ===> archangel
anger
anger ===> angry
anger ===> angrily
anger ===> in anger
angle
angle ===> angular
angle ===> triangle
angle ===> rectangle
angle ===> rectangular
angle ===> triangular
angler
angler ===> angling
anguish
anguish ===> anguished
animal
animate
animate ===> animation
animate ===> animated
ankle
anniversary
announce
announce ===> announcement
announce ===> announcer
announce ===> unannounced
annoy
annoy ===> annoyed
annoy ===> annoying
annoy ===> annoyance
annoy ===> annoyingly
annual
annual ===> annually
anonymous
anonymous ===> anonymity
anonymous ===> anonymously
another
another ===> another one
another ===> one after another
another ===> one another
another ===> one way or another
answer
answer ===> answerphone
answer ===> answering
answer ===> unanswered
answer ===> unanswerable
answer ===> in answer to
ant
ant ===> anteater
ant ===> have ants in your pants
antenna
anthropology
anthropology ===> anthropologist
anthropology ===> anthropological
antibiotic
antibody
anticipate
anticipate ===> anticipation
anticipate ===> anticipated
anticipate ===> unanticipated
antique
antique ===> antiquity
anxiety
anxiety ===> anxious
anxiety ===> anxiously
any
any ===> anybody
any ===> anyone
any ===> anything
any ===> anyway
any ===> anywhere
any ===> anyhow
anybody
anyhow
anyone
anything
anything ===> anything but…
anything ===> anything like
anything ===> for anything
anyway
anywhere
apart
apart ===> apart from
apart ===> far apart
apart ===> take apart
apartheid
apartment
apologize
apologize ===> apology
apologize ===> apologetic
apologize ===> unapologetic
apostrophe
appal
appal ===> appall
appal ===> appalling
appal ===> appalled
apparatus
apparent
apparent ===> apparently
apparent ===> unapparent
appeal
appeal ===> appealing
appeal ===> appealingly
appeal ===> unappealing
appeal ===> sex appeal
appeal ===> appeal against
appeal ===> appellant
appear
appear ===> appearance
appear ===> to all appearances
appear ===> disappear
appear ===> disappearance
appear ===> disappearing
appear ===> appearances
appendix
appendix ===> appendicitis
appendix ===> append
appetite
appetite ===> appetizer
appetite ===> appetizing
appetite ===> unappetizing
applause
applause ===> applaud
apple
apple ===> pineapple
apple ===> apple pie
apply
apply ===> apply for
apply ===> application
apply ===> application form
apply ===> applicant
apply ===> appliance
apply ===> misapply
apply ===> misapplication
apply ===> applicable
apply ===> applied
apply ===> inapplicable
appoint
appoint ===> appointment
appoint ===> appointed
appointment
appraisal
appraisal ===> appraise
appreciate
appreciate ===> appreciation
appreciate ===> appreciative
appreciate ===> unappreciative
apprentice
apprentice ===> apprenticeship
approach
appropriate
appropriate ===> appropriately
appropriate ===> inappropriate
appropriate ===> inappropriately
appropriate ===> inappropriateness
appropriate ===> appropriation
appropriate ===> appropriated
appropriate ===> misappropriate
approve
approve ===> approve of sth
approve ===> approval
approve ===> approved
approve ===> approving
approve ===> disapprove
approve ===> disapproval
approve ===> disapproving
approve ===> disapprovingly
approve ===> unapproving
approximate
approximate ===> approximately
approximate ===> approximation
apron
apt
apt ===> aptly
apt ===> aptness
apt ===> inapt
aquatic
aquatic ===> aquarium
arbitrary
arbitrary ===> arbitrarily
arc
arcade
arch
arch ===> arched
arch ===> arching
arch ===> archway
archaeology
archaeology ===> archeology
archaeology ===> archaeologist
archaeology ===> archeologist
archaeology ===> archaeological
archaeology ===> archeological
archbishop
architect
architect ===> architecture
architect ===> architectural
archive
archive ===> archivist
area
area ===> grey area
area ===> gray area
arena
argue
argue ===> argument
argue ===> arguably
argue ===> arguable
argue ===> unarguable
argue ===> unarguably
argue ===> argumentative
arise
aristocrat
aristocrat ===> aristocracy
aristocrat ===> aristocratic
arithmetic
arithmetic ===> arithmetical
arm
arm ===> arm in arm
arm ===> fold your arms
arm ===> with open arms
arm ===> armchair
arm ===> armpit
arm ===> forearm
arm ===> underarm
arm ===> arms
arm ===> armed
arm ===> unarmed
arm ===> armed forces
arm ===> be up in arms (about sth)
arm ===> firearm
arm ===> disarm
arm ===> disarmament
arm ===> lay down one’s arms
armour
armour ===> armor
armour ===> armoured
armour ===> armored
armour ===> armoury
armour ===> armory
armour ===> armoured / armored car
armour ===> armour / armor plate
armour ===> armour / armor plated
army
aroma
aroma ===> aromatic
around
around ===> be around
around ===> hang around
around ===> round about
arouse
arouse ===> arousal
arouse ===> aroused
arrange
arrange ===> arrangement
arrange ===> rearrange
arrange ===> rearrangement
array
array ===> disarray
arrest
arrive
arrive ===> arrival
arrogance
arrogance ===> arrogant
arrogance ===> arrogantly
arrow
art
art ===> artist
art ===> art gallery
art ===> arts
art ===> artistic
art ===> artwork
art ===> work of art
art ===> arts and crafts
art ===> martial art
art ===> artistry
artefact
artefact ===> artifact
artery
artery ===> arterial
arthritis
arthritis ===> arthritic
article
article ===> definite article
article ===> indefinite article
articulate
articulate ===> articulation
articulate ===> inarticulate
artificial
artificial ===> artificially
artificial ===> artificiality
artificial ===> artificial intelligence
artillery
as
as ===> as…as
as ===> as well
as ===> as well as
as ===> so as to
as ===> as far as
as ===> as far as possible
as ===> as far as I know
as ===> as for
as ===> as regards
as ===> as to
as ===> as if
as ===> as though
as ===> as long as
as ===> as soon as
as ===> as soon as possible
as ===> asap
ascend
ascend ===> ascent
ascertain
ascribe
ash
ash ===> ashtray
ash ===> ash cloud
ashamed
ashore
aside
aside ===> aside from
ask
ask ===> ask for
ask ===> ask after
asleep
asleep ===> fall asleep
aspect
aspire
aspire ===> aspiration
aspire ===> aspiring
aspirin
ass
ass ===> asinine
assassinate
assassinate ===> assassination