while; during; while; although; all; both
same; identical; equal; anyway; anyhow; in either case
to think (about, of); to think over; to consider; to bear in mind; to think (that); to believe; to intend (to do)
to live; to exist; to make a living; to subsist; to be in effect; to be in use
the future (usually distant); future tense; the world to come
as a matter of fact; by the way; to tell you the truth; to be honest; frankly
duty; responsibility (incl. supervision of staff); liability; onus
serious; important; significant; grave; weighty
insufficiency; deficiency; shortage; dissatisfaction; discontent; complaint
something; something or other; so-and-so; somehow; anyhow; one way or another
what; how many; many; a lot of; several; a few
to differ (from); to vary; to not be in the usual condition; to not match the correct (answer, etc.); to be different from promised; isn't it?
in that way; thus; so; so?
to leave (behind); to leave (undone); to not finish; to save; to set aside; to leave (to someone, esp. after one's death)
given that ... it is only natural that ...; ... being the case, it is unavoidable that ...; (precisely) because ...; contrary to expectations ...
while alive; during one's lifetime
living; life (one's daily existence); livelihood
habit; behavior; behaviour; trait
to separate; to part; to divide; to keep apart
good; excellent; sufficient; enough; profitable (deal, business offer, etc.); beneficial
with trouble; at great pains; rare; valuable; kind; generous
being deeply moved emotionally; excitement; passion; inspiration; deep emotion; strong impression
feeling; sensation; preparedness; readiness; thought; sentiment
there's no (other) way; cannot be helped; unavoidable; it's no use (doing); pointless; hopeless (person)
safety; security; safely; without incident; good health; inaction
human being; human; person; character (of a person)
to put back; to return; to vomit; to throw up; to recover (of a market price)
medicine; agent; (chemical) substance; drug; dose