便是

(emphasizes that sth is precisely or exactly as stated) / precisely / exactly / even / if / just like / in the same way as

plain / informal / suitable / convenient / opportune / to urinate or defecate / equivalent to 就[jiu4]: then / in that case / even if / soon afterwards

used in 便宜|便宜[pian2 yi5] / used in 便便[pian2 pian2] / used in 便嬛[pian2 xuan1]

variant of 是[shi4] / (used in given names)

to be (followed by substantives only) / correct; right; true / (respectful acknowledgement of a command) very well / (adverb for emphatic assertion)

lit. whoever provides milk is your mother (idiom) / fig. to follow whoever is feeding you / to put one's loyalties where one's interests lie

a woman's virtue is to have no talent (idiom)