开
kāi
I v.
1) divide into
2) reveal
3) boil
水开了，快去冲茶。 The water's boiling. Hurry and make tea.
4) topo./slang dismiss; fire (an employee)
5) pay (wages/fares/etc.)
6) coll. eat up
7) turn on (a light)
8) run a (business)
9) hold a (meeting/etc.)
10) eliminate
II adv.
1) open
2) (indicating the beginning and continuation of an action)
III n.
1) Surname
2) print. size of a book page; -mo
3) carat
IV suf.
1) added to verbs to express “away; off; out; etc.”
这屋太小，我们坐不开。 The room is not big enough to seat all of us.
2) added to two digits to express a ratio between the two considered as parts of ten
七三开 7:3