hypothesis; supposition; assumption; tentative theory
establishing proof; demonstration; substantiation
five; five years of age; eight o'clock (old time system)
cool; stylish; good-looking; fashionable; sexy
chance; start; cue; excuse; motive; impetus
vague; ambiguous; shady; disreputable; fuzzy
being obtrusive; being conspicuous (in a bad way)
to take the middle (between the two); to split the difference
pressure; urgency; tension; imminence; acuteness
I don't know ...; how about ...?; I wonder; what about ..?
base; basis; base (e.g. military); depot; base; base bag
preservation; conservation; storage; saving (e.g. to disk)
pronunciation; production of sound
to be mixed together; to be blended; to intermingle; to commingle
to one's heart's content; as much as one wants; as hard as one can; resolution; decisiveness; determination
locking sword to sword (in a duel) and pushing; fierce, close-fought competition
disorder; confusion; clutter; mess; muddle; disarray
to miss (e.g. a chance); to lose; to set free; to let go; to fail to ...
exchange; reciprocation; give-and-take; reply; riposte
now advancing and now retreating; ebb and flow; seesawing; taking alternately favorable and unfavorable turns
offense and defense; offence and defence
to concentrate; to devote; to apply; to strain; to rack
to accomplish; to fulfill; to carry out
to light (a candle, lamp, etc.); to turn on (a light)
to trace (drawing); to follow; to imitate; to copy; to reproduce
not straightforward; not dealt with by ordinary means
thought; consideration; thinking
blink (of eyes); wink; twinkling (of stars); flicker (of light); blink (of light)
you have only to; all you have to (do); all that's required; as long as; if only
going on ahead; forestalling; anticipating; arrival before another
staring (e.g. eyes); goggling; glaring
watermelon (Citrullus lanatus)
to thrust before; to thrust at
icicle; ice pillar (for cooling a room); (arch.) ice
to make a circle (of a motion, arrangement, etc.); to move (e.g. one's head) in a circle; to form (the shape of) a circle; to draw a circle
bearing; heading; point of the compass