absolutely essential; indispensable; vital; critical
stability; steadiness; equilibrium
aviation; flight; flying; to fly; to take a flight
large amount of baggage; bulky baggage; cargo
lodging together; training camp; boarding house
pillow; bolster; introduction (e.g. to a rakugo story); lead-in
between-meal snack; mid-afternoon (around 3 o'clock) snack; afternoon refreshment; afternoon tea
to go on a trip; to go out to play; to go and visit (a friend)
teacher; instructor; professor
to handle (men); to master (a tool); to manage; to acquire a command of (a language)
(one's) favourite food; (one's) favorite food
stupid; foolish; idiotic; fool; idiot; blockhead
moron; idiot; stupid person
hustle; working hard; doing with enthusiasm; showing eagerness; being full of vigour
unidentifiable; unidentified
choking; suffocating; stifling; oppressive; heavy
concentration; thickness; density; cardinality
to freeze to death; to die of cold
hollow; low ground; basin; pit; dip; depression
to abandon; to fail; to desert; to forsake
to collect oneself; to cool off; to recover oneself
how many people; a number of people
(are you) alright?; (are you) OK?
to lose sight of (one's companions); to stray from; to miss (one's chance to ...)
assistance; help; aid; support; reinforcement
least; lowest; worst; awful; horrible; at the very least
to go round and cut in; to take a roundabout path
running out of energy; running out of strength
examination; quiz; test; tryout; rehearsal (in filming)
valuation; appraisal; evaluation; appreciation; recognition; acknowledgement
dullard; indecisive person
blockhead; dunce; dimwit; dolt; slowcoach; slowpoke
slight; light; thin; faint; dim