subject (of a medical experiment, etc.); test subject; trial subject; examinee (of a full-body scan, etc.)
to have meaning; to be meaningful
source of electricity; electrical power; power (button on TV, etc.)
uninterruptible power supply; UPS
time of emergency; (in an) emergency
(something) has never occurred; to have never done (something); such a thing has not happened; never happens; there is never a time when
underground; subterranean
great; excellent; very troublesome; awful; tiring; tough
pardon me for leaving (first)
consolation money; compensation for breaking off relations (e.g. with a mistress); settlement
tidal hour; right time; favourable opportunity (favorable)
in that respect; on that point; in that regard
but (still); and yet; nevertheless; even so; notwithstanding
heavy; weighty; heavy (feeling); depressed; slow; sluggish; important (position, responsibility, etc.)
to be sticky; to be adhesive; to persevere; to persist; to stick to
disturbance; perturbation; derangement
himself; yourself; herself
I'm sorry; (it's) inexcusable; I feel regretful; thank you very much (for help, etc.)
to determine (esp. a culprit or underlying cause); to pin down; to ascertain; (arch.) to stab to death
not busy; unengaged; being free; leisure
by the way; incidentally; sometimes; occasionally; precisely (at that time); exactly
mostly; ordinarily; probably; most; almost all; ordinary
to make war (on); to wage war (against); to compete (against); to struggle (against adversities, etc.); to fight
composition; piece of music; tune; melody; enjoyment; fun
appropriate; adequate; suitable; fitting; worthy
anxiety; uneasiness; worry; apprehension; fear; insecurity
to grow hot (e.g. water); to boil; to get excited (at); to erupt (in applause, cheering, etc.); to ferment; to melt (of metal)
short; shortstop; short (circuit); short hair; short selling
(sound of a) gunshot; (gun) report
to learn; to acquire knowledge; to carry; to wear (clothes, etc.); to put on
lead nowhere; get one nowhere; no use; fruitless; there's no point (in doing)
deplorable; regrettable; disappointing; vexing; unfortunate