well-known only to those in the know; well-known but to the few; well-known to a connoisseur
heresy; nonconformism; heathenism; paganism
to know; to be aware (of); to sense; to feel; to understand; to comprehend; to remember
easy; trifling; harmless; nothing of the sort; not at all
at that time; in those days
the present; present time; as of; present tense; this world; this life
to forbid; to ban; to prohibit; to suppress (a feeling, laughter, etc.); to hold back (e.g. tears)
to use (a tool, method, etc.); to make use of; to use (a person, animal, puppet, etc.); to employ; to use (time, money, etc.); to spend
experiment; experimentation
to perform; to do; to conduct oneself; to carry out
wherein; therein; thereinto; among which
at; in; at; when; by; with; so
terrible; dreadful; terrifying; surprising; startling; tremendous
savage; barbarous; barbaric; uncivilized; uncivilised
one; for one thing; only; (not) even; just (e.g. "just try it"); some kind of; one type of
as (i.e. in the role of); for (i.e. from the viewpoint of); apart from ... (used to change the topic); even (e.g. "not even a single person"); thinking that ...; trying to ...
human being; human; person; character (of a person)
already; yet; soon; shortly; further; more
that; the; part (as in "part two"); um ...; er ...
area; vicinity; side; edge; circumstances
anyway; anyhow; setting aside ...; regardless of ...; really; truly
superior (in rank); top; higher order (e.g. byte); host computer (of connected device)
business; task; use; purpose; for the use of ...; used for ...
information terminal (esp. smartphone, cellphone); digital assistant
called; named; as many as; as much as; all ...; every single ...
to leave (behind); to leave (undone); to not finish; to save; to set aside; to leave (to someone, esp. after one's death)
research; study; investigation
facility; facilities; institution; home (for the elderly, orphans, etc.)
bottom; sole; depths (e.g. of despair, the sea); bottom (of one's heart); limit; end
thing; matter; incident; occurrence; circumstances; situation; work
to determine (esp. a culprit or underlying cause); to pin down; to ascertain; (arch.) to stab to death
a little; a bit; just a minute; for a moment; somewhat; rather; (not) easily
to wait; to await; to look forward to; to depend on; to need
sudden; abrupt; urgent; pressing; steep; sharp; rapid
disliking; not wanting; unpleasant; disagreeable; no!; quit it!
direction; orientation; bearing; course (e.g. of action)
to roll; to tumble; to fall over; to roll over; to lie down; to be scattered about; to be lying around
and; and then; thus; and now; and finally
this; this one; this person; now; this point (in time); here; used to stress the subject of a sentence
to continue; to last; to continue (without a break); to be unbroken; to occur again and again; to lead to; to connect to
passage; pathway; roadway; avenue; aisle
key; lock; key (to a problem, success, etc.); clue
yes; that is correct; understood; I see; present; here; pardon?
medium (size); average (grade, level, etc.); in; within; during; while; currently (doing)