ironclad rule; inviolable rule; invariable principle; iron law
right beside; close to; nearby
to hold (in one's hand); to take (into one's hand); to own; to obtain
adjustment; regulation; coordination; reconciliation; tuning; fixing
red; crimson; scarlet; Red; communist
to spread (out); to extend; to stretch; to reach to; to get around; to fill (e.g. a space)
absorption; suction; attraction
structure; construction; arrangement; plan; plot; contrivance
incomplete; unfinished; imperfect
diversion; putting something to another use
destination (of a letter, parcel, etc.); receiver's address; consignee
while moving; on the move
measurement error; calculation error; discrepancy; deviation; difference
allowable error; allowable limit of error
even if; even though; even; too; whether ... or ...; no matter (what, where, who, etc.)
success; achievement; succeeding (in life); (worldly) success; prosperity
to send; to direct; to dispatch (person, car, etc.); to direct (attention); to turn (spotlight, etc. on)
to become possible; to become able to (do)
to be noisy; to be astir; to rustle; to murmur
then; in that case; considering; if that is the case; if so
(not) anything; (nothing) at all; (not) any
high alert; a state of high alert; on alert
urban area; urban district
spare time; free time; time (it takes to do something); time required; time off; leave; dismissal
offensive camp; team at bat
easy; simple; informal; offhand; cheap
spot; point; place; position
whenever you want; any time you like
difficulty; hardship; trouble; infeasibility; inability (to carry out)
vast; huge; immense; malva nut (Scaphium affine)
equipment; facilities; installation; accommodations; conveniences; arrangements
priority; order of precedence
knowledge; information; opinion; view
artificial; unnatural; human-caused (e.g. mistake, error, disaster); man-made
construction; building; putting up; erecting; creation; formulation
red; crimson; red-containing colour (e.g. brown, pink, orange); Red (i.e. communist); red light (traffic); red ink (i.e. in finance or proof-reading); (in) the red
how; in what way; why; for what reason; cannot possibly; no way
base (military, expedition, etc.); enthusiast; maniac; fanatic
familiar; well-known; regular (e.g. customer); old acquaintance; old friend; (a) regular
blue; azure; green; pale (facial color); gray; unripe