exchange (e.g. cultural); interchange; interaction; alternating current; AC
composition; formation; organization; organisation; compilation
jumble; mixture; mess; muddle; disorder; chaos
to pose as; to (successfully) impersonate; to pretend to be; to (completely) become; to (fully) turn into
stamp; sticker (in messaging apps); (large) emoji
collecting series of stamps at railway stations, tourist spots, etc.
cold sleep; suspended animation
close; intimate; on good terms
one by one; each; every; at intervals of
to walk around; to travel around
slope; incline; slope (of a linear function); gradient (vector calculus)
lack of physical exercise; insufficient exercise; inactivity
to fail to catch; to let slip; to miss
to put one's life on the line
situation; outlook; one's allegiance; affiliation; position
different opinion; objection
vegetable; marijuana; cannabis
academic year; school year; year in school; grade in school
squad leader; group leader; team leader
senior; elder; person older than oneself
barrier; protective wall; obstacle; hindrance; imaginary shield that gives one invincibility or immunity
mountain's surface; bare surface of a mountain
standing signboard; billboard; hoarding
arsenal; arms and ammunition factory
requisition; requisitioning; seizure; confiscation; impounding; retaining (e.g. deposit)
cliff; precipice; precipice; brink of a dangerous situation
factory; plant; mill; workshop
(regular) route; fixed route; specified route; suggested route
near miss; just missing (each other)
criminal nature; criminality
to gather (of people); to assemble; to hang out; to assemble (of troops); to be stationed; to be quartered
half and half; fifty-fifty
hi; hello; hey; listen!; oh; come on!
older brother; elder brother; young man; buddy; fella
ecology; life and habits (of an animal); mode of life; way of living
after a short time; in a short while; a short time later
worry; care; concern; ennui; boredom
to sprain; to twist; to dampen (enthusiasm); to discourage; to dishearten