(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
can (i.e. have the skill, know how to) / likely to / sure to / to meet / to get together / meeting / gathering / union / group / association / a moment (Taiwan pr. for this sense is [hui3])