回

pen spinning; spinning a pen around between the fingers

contest decided by a single round (bout); contest decided by a single roll of dice; one-shot game (contest); make-or-break game

electric circuit

non-recoverable; unrecoverable; irreparable; irreversible; irretrievable

Economics

V-shaped recovery; sharp recovery

the recovery of lost territory; recovering (regaining) lost ground (one's former position); fence-mending

to spread money around (e.g. to give, to loan, to invest, etc.)

recoverable

Copernican revolution

Colloquial

revealing something that was foreshadowed earlier in the story

Computing

hang-up; HUP (signal)

12th anniversary of one's death

voluntary recall (e.g. of faulty goods)

control circuit; controlling circuit

chance meeting; fortuitous encounter

cylinder (of a revolver)

check all that apply (question format); multiple answers allowed; CATA

to twist; to twirl

to fiddle around with; to play with; to rewrite

to rack one's brains

to have fortune come your way; to become lucky

to turn something (forcefully)

Computing

recovery time

to go into opposition

to carry about

to have one's hands tied behind one; to be arrested