便
biàn
I adv.
1) then; in that case
2) as early/little as
他去年便进了大学。 He actually entered the university last year.
II conj.
1) even if
2) and then
III b.f.
1) convenient (方便)
2) informal; plain (便饭)
3) convenience (随便)
“我可以走了吗？”… “随你的便。” “May I leave now?” ... “Suit yourself.”
4) relieve oneself; urine; excrement (小便)