preservation; conservation; storage; saving (e.g. to disk)
hot; warm; passionate; impassioned; on everybody's mind; on the radar
hand; arm; forepaw; foreleg; handle; hand; worker
sweat; perspiration; moisture; condensation; gulp; oops
to be indelibly stained or ingrained; to be dyed in deeply
deoxyribonucleic acid; DNA
knowing; (an) acquaintance
detection; sense (e.g. sensor)
exceedingly; extremely; decisively
difficulty; hardship; trouble; infeasibility; inability (to carry out)
when it comes to ...; where ... is concerned; if it's the case that ...; if it turns out that ...; if it's true that ...
difficult; hard; impossible; unfeasible; fussy; particular; gloomy
zero; 0; nought; nothing; zilch
judgement; judgment; appraisal (e.g. of an antique); evaluation; forensics; (criminal) identification
the very end; finish; to the very end; to the last; thoroughly
to examine; to look up; to investigate; to check up; to sense; to study
(a) little; (a) few; slight; only; just; merely
clue; lead; key; handhold; hold
vindictive; tenacious; persistent; spiteful; vengeful
to bite at; to snap at; to nibble; to get one's teeth into (metaphorically); to get to grips with; to really get into
human being; human; person; character (of a person)
police officer; policeman; policewoman
limit; limits; degree; extent; the end; the last; as long as ...
should; must; -able; probably; likely
together; at the same time; same; identical
be supposed or expected to (do); be sure to (do); ought to (do)
regret; chagrin; mortification; freedom from obstructive thoughts
painful; sore; cringy; embarrassing; exceeding
regret; repentance; remorse
first of all; to begin with; probably; most likely; more or less (satisfactory); on the whole
one's relationships; people one knows; circle of friends
thorough; exhaustive; complete
to wash; to cleanse; to inquire into; to investigate; to purify (one's heart); to lave (e.g. shore)