implementation (e.g. of a system); materialization; materialisation; realization; realisation; actualization
root; source; origin; foundation; basis; essence
should; must; -able; probably; likely
order; sequence; procedure
next; following; subsequent; stage; station
to untie; to unfasten; to unsew; to unstitch; to solve; to work out; to dispel (misunderstanding, etc.)
doubt; question; suspicion; dubiousness
at that time; in those days
extent; degree; limit; bounds; (span of) time; (a) distance; the state of
separation (e.g. of rubbish when recycling); classification; discrimination; division; distinction
contrivance; to invent; to devise; to think out
question (e.g. on a test); problem; problem (e.g. societal, political); question; question (i.e. doubt); public discussion
nature; property; disposition
to receive; to get; to catch (e.g. a ball); to be struck by (wind, waves, sunlight, etc.); to sustain (damage); to incur (a loss); to undergo (e.g. surgery)
eye; eyeball; eyesight; sight; look; stare; notice
still more; to say nothing of; not to mention; still less
one's later years; final years (in life)
up through; up until; down to; from ... to ... (e.g. from head to toe); everything from ... to ...
to suit; to match; to become; to be like
persistent; obstinate; tenacious; relentless; insistent; importunate
to explain; to advocate; to preach; to persuade
origin; source; history; originally; from the start; by nature
deep; profound; dense; thick; close (relationship); intense; strong
to take down; to bring down; to drop off (a passenger); to let off; to withdraw (money); to use for the first time; to wear for the first time
to pile up; to stack; to load (car, ship, etc.); to pack; to acquire; to accumulate
in accordance with; according to; as X, then Y (e.g. as we age we gain wisdom, as wine matures it becomes more valuable, etc.)
heaven and earth; the universe; top and bottom; gods of heaven and earth
beginning of the world; creation
to take a peep at; to catch a glimpse of
behind; rear; after; later; remainder; the rest; more (e.g. five more minutes)
small quantity; little; little while; short distance
course (of events); development; progress; market order; order without limit
to be able (to); to be possible (to)
at the same time as; while; as well as (multiple roles)
wonder; miracle; amazement; prodigy
cool-headed; level-headed; hard-headed
both extremities; North and South Poles; positive and negative poles
to build up; to establish; to form; to become (a state); to accomplish; to achieve; to change into
axis; pivot; central figure; key man
revolution; rotation; turning; turning (an aircraft or ship)
to begin (doing); to start (doing)
violent; furious; extreme; intense; fervent; vehement
in some cases; sometimes; on occasions