(random) guess; guesswork; shot in the dark; conjecture
(not) necessarily; (not) entirely; (not) altogether
off the mark; off base; misdirected; irrelevant
stage assistant dressed in black; stagehand; prompter; behind-the-scenes supporter; string-puller
oh; ah; if there is; as for that; that is
end; verge; extremity; miss; failure; blank (e.g. lottery ticket)
handle; steering wheel; handlebar; handlebars; handle; screen name
gradually; by degrees; little by little; steps; stairs; staircase
looking at someone (with upturned eyes); glancing upwards (at someone)
beyond this point; ahead; from now on; after this; in the future
deepest part; deepest portion; depths (of the ocean etc.); innermost
deterioration; becoming decrepit; becoming worn out
generation of electricity; power generation; sending a telegram (now usu. for congratulations, condolences, etc.); telegraphing
something; some kind of; for some reason
number (in a series); (one's) turn; watch; guard; rank; standing; bout
some; any; in any way; of some kind; of some sort
trying to think of a way (to do); devising means (to do); working out (how to do); contriving (to raise money); managing
regrettable; unfortunate; disappointing; vexing
early days; early years; early stages; initial stages; beginning
cutting edge; leading edge; forefront; tip; end
after all; in the end; anyway; (cannot) possibly; (not) at all; (not) by any means
test subject (esp. animals or objects); experimental subject
premature; untimely (e.g. death); early
three years; third school year (e.g. of high school)
root; origin; source; Ōmoto (religion)
technical; technological; practical
clear; transparent; clearing (a high-jump bar, hurdle, etc.); overcoming; getting through; clearing (the ball; in soccer); clearing (e.g. a checked box)
manufactured goods; finished goods; product
now that you say that; now that you mention it
to understand; to be convinced; to be satisfied
to coil around; to follow about; to be related to; to concern; to be associated with
which reminds me ...; come to think of it ...; now that you mention it ...; on that subject ...; so, if you say ...
dweller; inhabitant; resident; user (of a website)
completely empty (of a residence, etc.); vacant; body from which the soul has left; corpse; shed skin (of a snake, insect, etc.)
material (data) for one's research; research material
not to mention ...; needless to say ...; not to speak of ...; (arch.) negligent; (arch.) neglectful; (arch.) careless
trace; vestige; mark; sign; evidence
extra; more; unnecessary; needless; all the more; even more