difference in grades (e.g. in go, shoji, etc.); difference in level (e.g. road, footpath); ramp; steps
viewing angle; viewing direction
difficult to ... (physically or emotionally); hard to ...
in hand; on hand; on one; handheld
directivity; directionality; intentionality
all over; everywhere; in every nook and cranny; brightly; clearly
aim; goal; prospect; outlook
to receive permission; to leave (with someone's permission); to retire; to refuse; to beg off doing
full view; total picture; whole story; full particulars; all the details
24 hours; twenty-four hours
firefly (Luciola cruciata); lightning bug; glowworm
very rare; very unlikely (to happen); scarcely; seldom; improbable; almost never (occurring)
conference room; council room
to learn by experience; to learn one's lesson; to learn the hard way; to be discouraged (by); to have enough (of); to be disgusted (with)
quality (of a product or a service)
retention; maintenance; preservation
uneventfully; without incident; without a hitch; peacefully
dispersion; breakup; variance; dispersion
armory; armoury; ordnance department
ammunition depot; ammunition dump; powder magazine
the rest; the others; in addition (to that); besides that; and so forth; and the like
freely; at liberty; at will; as one likes
to order; to command; to appoint
cannot be undone; can't be recovered from
intentionally; on purpose; deliberately; taking something into account
close connection; deep involvement; close relationship
wiles; sinister design; trick; conspiracy; intrigue
formation; molding; making (up); repair (e.g. with plastic surgery); replacement; -plasty
(connecting) passageway; accessway; walk-through; skyway; sky bridge
connection; linking; joining; coupling; attaching; junction
to hunt out; to flush out; to round up; to impress; to recruit
the whole area; the entire region; all parts (of); the whole field (of study); every field; the whole gamut
collecting; accumulating; collection (of art, stamps, insects, etc.); garbage collection; waste collection