通菜

通菜	tōng cài	see 蕹菜
通	tōng	to go through / to know well / (suffix) expert / to connect / to communicate / open / to clear / classifier for letters, telegrams, phone calls etc
通	tòng	classifier for an activity, taken in its entirety (tirade of abuse, stint of music playing, bout of drinking etc)
菜	cài	vegetable; greens (CL:棵) / dish (of food) (CL:样,道,盘) / (of one's skills etc) weak; poor / (coll.) (one's) type