(private) secretary; treasured book; secret book
heave-ho; oops; yes; yeah
airfoil profile; aerofoil profile; wing section
degree of difficulty; difficulty level
to be beyond one's capacities; to be beyond one's powers; to be beyond one's control; to be unmanageable
tail (of an aircraft); empennage; tail assembly
throughput; processing power
diffusion index; discomfort index; drug information
difficult voyage; stormy passage; hard flight; rough going; running into trouble; proceeding with difficulty
slapping; splashing; splatting; banging shut; flat (refusal, denial, etc.)
acquisition; obtaining; procurement; getting (hold of)
mountain chain; mountains
to run through; to run past
to be noisy; to be astir; to rustle; to murmur
state of things; state of affairs; situation; conditions; circumstances
deployment; disposition; posting; stationing
formation (e.g. of aircraft)
store; shop; establishment; restaurant
difficult to ... (physically or emotionally); hard to ...
management; administration; operation; running (a business); conducting
welcome; (warm) reception
feel uncomfortable; ill at ease; not feel at home
person concerned; interested party; related party
unconfirmed; unidentified
fixed period; fixed term; regular; periodic; fixed-term commuter pass; fixed-term deposit
order; directive; instructions; command
each; (arch.) you (plural)
succeeding; following; trailing; next
set (of things); combo; setting up; preparing; setting (hair); set (in tennis, volleyball, etc.); set (in a play, film, etc.)
termination (of a contract); cancellation; rescinding; lifting (of a ban, sanctions, etc.); removal; release (from obligations)
more than usual (usu. time)
to raise one's voice; to shout; to yell; to speak up (e.g. in protest); to speak one's mind
scene; view; prospect; outlook
head (of a line, group, etc.); front; lead; forefront; vanguard