通用性

universality

to go through / to know well / (suffix) expert / to connect / to communicate / open / to clear / classifier for letters, telegrams, phone calls etc

classifier for an activity, taken in its entirety (tirade of abuse, stint of music playing, bout of drinking etc)

to use anywhere, anytime (card, ticket etc) / to be used by everyone (language, textbook etc) / (of two or more things) interchangeable

to use / to employ / to have to / to eat or drink / expense or outlay / usefulness / hence / therefore

nature / character / property / quality / attribute / sexuality / sex / gender / suffix forming adjective from verb / suffix forming noun from adjective, corresponding to -ness or -ity / essence / CL:個|个[ge4]