for the first time; only after ... is it ...; only when ... do you ...; first time; (one's) first
implementation (e.g. of a feature); installation (of equipment); mounting; packaging
existing (at the present moment); alright; acceptable; to be (usu. of inanimate objects); to have
investigation; examination; inquiry; enquiry; survey
ecology; life and habits (of an animal); mode of life; way of living
becoming clear; coming to light; being ascertained; being identified; being confirmed
at that time; in those days; at that moment; then
repulse; repelling (e.g. the enemy); driving back
recapture; retaking; recovery; taking back
duty; function; office; mission; task; role
research; study; investigation
to advance (spatially); to go forward; to precede; to go ahead (of); to make progress; to move ahead (e.g. of work); to intensify
to be possible; to be conceivable; to be likely; to be probable
(common) use (of a language, currency, etc.); current use; to be accepted (e.g. of a way of thinking); to work (of an excuse, trick, etc.); going in and out; entrance and exit
industry; (arch.) livelihood; (arch.) occupation
mainly; chiefly; primarily; for the most part
to need; to call for; to require
tendency; trend; inclination
entrance (on the stage); appearance (in a book, film, etc.); appearance (on the scene); arrival (on the market); emergence
basics; fundamentals; basis; basically; fundamentally
(not) so; (not) particularly; (not) very; (not) that much
change; alteration; difference; distinction; something wrong; abnormality
to (happen to) see; to notice; to catch sight of
to handle; to operate (a machine, etc.); to deal with (an issue); to manage; to treat (someone); to deal with (someone)
element; component; factor; element (e.g. in array); member (e.g. data structure)
suggestion; hint; implication
wonderful; marvelous; strange; strangely enough; oddly enough; for some reason
to decide to; to pretend that; to make a practice of doing; to make it a rule to
neighbourhood; neighborhood; vicinity
place; position; location; position; standing; status
check (pattern); plaid; check; inspection; check (mark); tick; checking (something) out
(telephone) call; ring (of a telephone); shout; call; call; call loan (e.g. 30-day call)
sound; noise; (speech) sound; Chinese-derived reading of a kanji
to sound; to ring; to resound; to echo; to roar; to rumble
to become confused (disconcerted, disorganized, disorganised); to be flustered; to panic; to hurry; to rush; to hasten
telephone call; speaking over the telephone; (Internet) voice call; counter for telephone calls of a set duration