to throw (sth in a specific direction: ball, javelin, grenade etc), to cast (a ballot), to cast (a glance, a shadow etc), to put in (money for investment, a coin to operate a slot machine), to send (a letter, a manuscript etc), to throw oneself into (a river, a well etc to commit suicide), to go to; to seek refuge; to place oneself into the hands of, (coll.) to rinse (clothes) in water
to enter; to go into, to join; to become a member of, (bound form) to conform to (as in 入時|入时[ru4 shi2]), abbr. for 入聲|入声[ru4 sheng1], (on product packaging, after {number n} + {classifier}) containing (n pieces) (from Japanese 入 "iri")