safety; security; safely; without incident; good health; inaction
distance; interval; gap; difference; estrangement
to eat; to drink; to receive (e.g. a blow); to be on the receiving end (of something undesirable); to undergo (trouble)
closing; closure; shutdown; lockout
escape; break-out; prolapse; proptosis
release; unleashing; liberation; deallocation (of computer memory)
to spread (out); to extend; to stretch; to reach to; to get around; to fill (e.g. a space)
to perceive; to sense; to take in; to grasp; to feel
to satisfy (conditions, one's appetite, etc.); to meet (e.g. demands); to fulfill; to fill (e.g. a cup); to pack; to supply
mutually; with each other; reciprocally; together
squaring; multiplying (a number) by itself; second power
one by one; each; every; at intervals of
passage (of time); elapsing; progress; development; transit
accumulation; accumulate; store
to rise; to swell; to be promoted
boundary; (nuclear) criticality; critical (mass, pressure, temperature, state, point, etc.)
to reach; to get to; to arrive at
broken into small fragments; smashed to atoms; fragments and splinters; smithereens
solid; firm; stout; burly; strong; sturdy
to break (into pieces); to be broken; to collapse; to crumble; to become less formal; to throw off reserve
to appear; to come in sight; to become visible; to be expressed (e.g. emotions); to become apparent (e.g. trends, effects)
unthinkable; unexpected; absolutely not!; far from it!; (it was) no bother at all; not at all
origin; source; base; basis; cause; ingredient; material
to pile up; to heap up; to stir up; to enliven; to bring to a climax
occasionally; once in a while; now and then; rarely; seldom
war; battle; campaign; (arch.) troops; (arch.) forces
change; modification; alteration; revision; amendment
after the end (of something); post-
to see; to look; to watch; to try to
vote; ballot; label; ticket; tag
direction; district; area; field (e.g. of study); sphere; quarter
300; three hundred; 300 mon; trifling amount; shyster