by chance; by accident; accidentally; occasionally; once in a while; now and then
inside; interior; inner part
to go into; to come into; to penetrate; to become complicated
to tell X from Y; to distinguish; to know (one thing) from (another)
disorder; chaos; confusion; mayhem
in a manner of speaking; as it were; so to speak; if you like; per se
inside (a region, area, etc.); within the range (of); within the sphere (of influence, etc.)
to make a decision; to draw a conclusion; to give a judgement; to hand down a verdict; to let go down; to lower; to do oneself
order; command; decree; (software) instruction; statement
signal; signalling; signaling; traffic light; traffic signal
mixing; blending; adding; adulteration; contamination
noise (usu. unpleasant); interference (e.g. radio); static; gossip; irresponsible criticism
it is assuredly (that) ...; can say with confidence that it is ...
coming flying in (of migratory birds, airborne sand, etc.); coming by airplane
to check; to stop; to keep back
super-; ultra-; extremely; really; of course; definitely
at; in; at; when; by; with
to add; to add up; to increase; to gather (e.g. speed); to include; to count in
exclusion; removal; elimination; clearing away; getting rid of
foreign substance; foreign body; strange object; unusual object; (arch.) dead body; (arch.) corpse
difficult to ...; hard to ...
on this occasion; now; in these circumstances; with this opportunity
standard; basis; principle
as a matter of fact; actually; effectively; in reality; in effect
danger; peril; hazard; risk
to pass through; to pass by; to pass (of time); to elapse; to have expired; to have ended; to exceed
unhurt; uninjured; flawless (e.g. gem); unblemished; spotless (e.g. reputation); faultless (e.g. performance)
to catch; to capture; to grasp (e.g. meaning); to perceive; to captivate; to move (one's heart)
to move; to shift; to inspire; to rouse; to change; to alter; to operate
fierce; intense; severe; very; extremely; terribly
pointed end; tip; point; forefront; vanguard; spearhead
to entwine; to twine around; to coordinate (with); to arrest
to flip; to snap; to repel; to use (an abacus); to calculate; to strum
aim (of a gun, bow, etc.); aim; object; objective
to turn away (one's eyes, face, etc.); to avert; to displease; to annoy; to miss (the target, ball, etc.)
empty; void; vain; fruitless; lifeless
to jump up; to spring up; to jump (market, price, etc.); to rise sharply; to act rashly; to jump the gun
to go through; to pierce; to run through (e.g. a river through a city); to pass through; to stick to (opinion, principles, etc.); to carry out
tightly; closely; exactly; precisely; suddenly (stopping); perfectly (suited)
close adhesion; sticking firmly (to); relating closely (to); having relevance (to); contact printing
voice; speech; phone (as opposed to a phoneme); speech sound; audio; sound (as opposed to the picture)
to squeeze; to wring out; to narrow down; to refine
fireball; bolide; fireball
violent explosion; bursting