machine; mechanism; instrument; appliance; apparatus
skeleton (of a vertebrate, ship, building, etc.); transparency (revealing the inner workings of a device); translucency; skeleton (sport); skeleton (code)
reflection; reverberation; reflex; reflexes
lesson; section (in an organization); division; counter for lessons and chapters (of a book)
treatment; service; handling (of a machine, tool, etc.); operation; treating as; treating like
appropriate; adequate; suitable; fitting; worthy
piece; slice; cloth; sharpness; agility; counter for scraps, pieces, etc.
to throw away; to cast away; to abandon; to desert; to give up; to resign
completely; absolutely; (not) at all; (not) a bit; earnestly; intently
anywhere; for all time; through thick and thin; come hell or high water; persistently; stubbornly
to adhere to; to stick to; to keep close to; to go along with; to get involved with; to be thick with
one's physical safety; personal security
setback; deadlock; standstill; impasse; miscarriage
mumbling; muttering; complaining (continuously) about something
to change; to exchange; to convert; to renew; to throw a switch; to replace
groping (for); fumbling around (for); searching (for an answer, solution, etc.); trying to find
again (and again); once again; yet again
throwaway; disposable; single-use
memories; recollections; reminiscence
senior high school student
world view; outlook on the world; Weltanschauung (philosophy); appearance of a world (e.g. in fiction)
sailor suit; middy uniform
calculating; sly; cunning; flirty; flirtatious
after all is said and done; no matter what people say; in the end; definitely; undeniably
convenient; useful; finding useful; coming in handy; (priceless) treasure
junior (at work, school, etc.); younger people; younger student
component; factor; item (e.g. in list); element (e.g. in array); member (e.g. data structure)
front-facing; forward-looking; positive; constructive
to fit into (a box, frame, category, etc.); to be contained within; to settle down (into); to be installed (in one's rightful place); to settle into (one's position); to take up (a post)
only; merely; but; no more than
rubbish; trash; garbage; refuse
suit (clothing); suit (playing cards)
system; lineage; corollary; system (range of strata that correspond to a particular time period); (taxonomical) series
cold; chilly; cold (attitude, stare, etc.); frigid; composed; cool
to overlook; to command a view of; to look down on; to despise; to look down on
low intelligence; low IQ; feeble-mindedness; unintelligent person; person with a low IQ
battlefield; battleground