eng

avocation: customarty employment:VOCATION
a subordinate occupation pursued in addition to one’s vocation especially for enjoyment:HOBBY

tenure: the act, right, manner, or term of holding something (as a landed property, a position, or an office) especially, a status granted after a trial period to a teacher that gives protection from summary dismissal
:GRASP,:HOLD

glitch: a usually minor malfunction: a glitch in a spacecraft’s fuel cell:BUG
a minor problem that causes a temporary setback:SNAG
a false or spurious electronic signal

spurious: of illegitimate birth:BASTARD
outwardly similar or corresponding to something without having its gnuine qualities:FALSE
:FORGED or of a deceitful nature or quality

conjecture::SUPPOSITION
inference from defective or presumptive evidence
a conclusion deduced by surmise or guesswork
a proposition before it has been proved or disproved

moat: a deep and wide trench around the rampart of a fortified place(as a castle) that is usually filled with water

rampart: a protective barrier:BULWARK
a wall-like ridge

creed: a brief authoritative formula of religious belief
a set of fundamental beliefs, also a guiding principle:CREDO
creedal or credal

billiards: I gave him a good licking at billiards
A shot in billiards in which the cue ball successively strikes two other balls.

corollary

congestion: