to eat; to live on (e.g. a salary); to live off; to subsist on
spare time; free time; time (it takes to do something); time required; time off; leave; dismissal
meaning; significance; sense
anxiety; uneasiness; worry; apprehension; fear; insecurity
to say; to utter; to name; to call; to go (e.g. "the alarm went ping"); to make a noise
the expectation is that ...; the reason is that ...; the fact is that ...; the explanation is that ...; it is that ...
absorption; suction; attraction
seems; I think; I guess; right?; don't you agree?; I thought you'd say that!
solution (of an equation, inequality, etc.); root (e.g. of a polynomial); solution (to a given problem); answer; explanation; interpretation
yikes; oops; eep; wow; aargh
storage; putting away; receipt (of funds, payment, etc.); harvesting
sure; certain; reliable; trustworthy; If I'm not mistaken; If I remember correctly
by the way; incidentally; sometimes; occasionally; precisely (at that time); exactly
to be heard; to be audible; to sound (like); to come across (as); to be well known; to be famous
effect; effectiveness; efficacy; effects (e.g. sound effects, visual effects, special effects)
sticking (in one place, position, etc.); settling; becoming established (of a custom, system, etc.); taking hold; fixation; fixing
good; advantage; sake; purpose; consequence; result
reaction; response; physical reaction (to a stimulus); observable response (of an organism); reaction; effect
quick; speedy; prompt; rapid; swift
to perform; to do; to conduct oneself; to carry out
possible; potential; practicable; feasible
predation; eating prey; preying upon
target; object (of worship, study, etc.); subject (of taxation, etc.); coverage
to take in; to bring in; to capture (e.g. image); to import; to win over; to please
analysis; analytical study; parsing; parse
that; the; part (as in "part two"); um ...; er ...
learning; acquisition (of a skill, knowledge, etc.)
completion; conclusion; perfect (tense)
mimicry; mimesis; camouflage
change to ...; becoming ...; making into ...; -ization; -ification
furthermore; again; after all; more and more; moreover; even more
to reach; to amount to; to be up to the task; to come up to; to compare with; to be a match (for)
isolation; segregation; separation; quarantine
terrible; dreadful; amazing (e.g. of strength); great (e.g. of skills); to a great extent; vast (in numbers)
to hold (in one's hand); to take; to possess; to have; to maintain; to keep; to last
that's the way it is; yes; is that so?; is it?
with trouble; at great pains; rare; valuable; kind; generous
as a test; as an experiment; by way of experiment; by way of trial; tentatively
(some) more; even more; longer; further
demon; devil; evil spirit; monster; goblin; apparition