gradually; steadily; slowly; little by little; step by step; by degrees
(many) mountains; very much (wanting to do something one cannot); greatly; so many; a lot of
period of time; time slot; time zone
oh!; ah!; oh dear!; good grief!; dear me!; thank God!
mean; contemptible; despicable; dirty; foul; cowardly
excellent; very good; exultant; elated
to speak ill of; to disparage
to take a breather; to take a rest; to catch one's breath; to take a breath
(sound of) laughter; laughing voice
small amount; jot; nothing much; (to a) slight degree; wee bit
body; group; party; gang; troupe; troop
immediately; at once; soon; before long; easily; readily
at leisure; in a relaxed manner; in a carefree manner; quietly; peacefully
to go (come) inside; to step into; to enter
side entrance; tradesman's entrance; service entrance; staff entrance
all around; as far as the eye can see
establishment; institution; installation (of a machine or equipment)
to sense; to suspect; to get an inkling (of something); to get wind of; to smell (e.g. danger); to become aware of (e.g. a plot)
force (bulldoze) one's way through
entrance; entry; gate; approach; mouth
operation; management; handling; manipulating (to one's benefit); manipulation; influencing
sky; the skies; high-altitude sky; upper air
staying in the air; remaining airborne
small; small-sized; small-scale; miniature
unmanned; uninhabited; unattended; shorthandedness; lack of help
reconnaissance plane; spy plane
since some time ago; for some time; for quite a while
rough sketch; floor plan; blueprint
to summon; to call (e.g. phone); to convene; to invoke (e.g. subroutine); to call; to open (e.g. a file)
route; road; distance travelled in a day; one's ... (age, e.g. 40s, 60s)
remaining heat; waste heat
following; pursuing; tracking; shadowing; tailing; chasing
inside; interior; inner part
proposal; proposition; suggestion
arsenal; ordnance factory; armoury; armory