to open (transitive or intransitive), (of ships, vehicles, troops etc) to start, to turn on; to put in operation; to operate; to run, to boil, to write out (a prescription, check, invoice etc), (directional complement) away; off, carat (gold), abbr. for Kelvin, 開爾文|开尔文[Kai1 er3 wen2], abbr. for 開本|开本[kai1 ben3], book format
(after a verb or adjective) one who (is) ..., (after a noun) person involved in ..., -er, -ist, (used after a number or 後|后[hou4] or 前[qian2] to refer to sth mentioned previously), (used after a term, to mark a pause before defining the term), (old) (used at the end of a command), (old) this