engine; agency; organisation; system; facility
doubt; question; suspicion; dubiousness
place; room; margin; scope
urgent; pressing; immediate; urgently; promptly; at once
suspension system (of a vehicle); undercarriage; area around one's feet; footwear
majority; more than half; most (of); mostly; largely; mainly
stubborn; dogged; persistent; tough; sturdy; hardy
power; might; authority; influence
perhaps; possibly; maybe; by some chance
trial product; prototype model
supply; supplying; replenishment
linear; rectilinear; straight-line; straightforward; simple
to drive in (e.g. nail, stake); to hammer in; to hit (a ball, etc.); to drive; to fire into (e.g. a crowd); to launch (e.g. missiles); to input (data)
suspension; stoppage; discontinuance; interruption
until something reaches the very limit; until the very last minute; up to the breaking point
out of range; outside the limits (of...); outside (a) range; outside the scope
to set free; to let go; to release; to miss (e.g. a chance); to lose; to let get away
(exercising) the right to command
selection; choice; option
wherein; therein; thereinto
frontmost; a short time ago; a little while ago; just now
to summon; to call (e.g. phone); to convene; to invoke (e.g. subroutine); to call; to open (e.g. a file)
underling; person of low standing; grunt; petty (work, official, etc.); minor; lowly
art; technique; means; way; trick; trap
advice (to a superior); counsel; proposal; suggestion; recommendation
whereabouts; place where one is; position; location
proposal; proposition; suggestion
pardon; forgiveness; tolerance; leniency; mercy; going easy (on someone)
leadership; initiative; spearhead
(instruction) manual; operations manual; basic rules (pertaining to how a job should be carried out); (car with) manual transmission
recommendation; endorsement
way (of doing); manner; method; means
contest decided by a single round (bout); contest decided by a single roll of dice; one-shot game (contest); make-or-break game
preventing (someone) from leaving; confinement; keeping indoors; being stranded; grounding
downstream; lower reaches of a river; lower classes