scale; scope; plan; structure
interval; space; valley; gorge; loophole (in a wall); crenel
terrific; fierce; terrible; tremendous; dreadful; awful
to rush into; to surge into; to crowd into
exactly; surely; right then; just then; just (about to); on the verge (of doing or happening)
calculation; reckoning; count; forecast
to sink; to go under; to go down (e.g. sun); to set; to feel depressed; to become subdued
to descend (e.g. a mountain); to go down; to alight (e.g. from bus); to get off; to step down; to retire; to be granted
one machine; one aircraft; one life
to fly away; to flee away; to scatter
chance; opportunity; machine; aircraft; counter for aircraft; counter for (remaining) lives
state; state of affairs; appearance; look; sign; indication
above ground; on the ground; earth's surface; this world; this earth
descent; fall; drop; passing down (of an order, decree, etc.)
overhead; above one's head; high in the sky
revolution; rotation; turning; turning (an aircraft or ship)
simultaneously; all at once; in unison
throwing down; dropping; airdrop; investment
correspondence; communication; transmission; news; signal; telecommunications
pipe; tube; gun barrel; gun; cannon; well lining
cap (headwear); cap (of a bottle, pen, etc.); leader; chief
to remove; to take off; to drop (e.g. from a team); to remove (from a position); to leave (e.g. one's seat); to go away from
to relapse; to reassert; to review
duty; function; office; mission; task
to introduce oneself; to announce oneself (e.g. as the person sought); to come forward (e.g. as a witness, with a claim, etc.)
testimony; (verbal) evidence
(following a verb) to be sure to; to do (something) so that ...; to make sure to; to try to
safe (e.g. choice); secure; innocuous; acceptable; passable; satisfactory
to accomplish; to finish; to carry through; to follow through
center; centre; middle; -centered; -centred; -focused
positive; assertive; active; proactive; aggressive
hearing (of a statement, opinion, explanation, etc.); asking; questioning (e.g. a suspect); listening (e.g. to the radio)
in so doing; when you do so; in this regard; on this occasion; some time during that period