1gate; door; doorway; gateway; opening (CL:扇)
2valve; switch; other door-like or gate-like structure
3way to do sth; knack; method; approach
4family; household; lineage
5sect; school; faction (religious or academic)
6class; category; division; phylum
7(suffix) -gate (scandal)
8classifier for courses, fields of study, branches of technology, relatives by marriage, guns etc