便是

biànshì
  1. (emphasizes that sth is precisely or exactly as stated)
  2. precisely
  3. exactly
  4. even
  5. if
  6. just like
  7. in the same way as

CEDICT

Entry Composition

1 便 biàn
  1. plain
  2. informal
  3. suitable
  4. convenient
  5. opportune
  6. to urinate or defecate
  7. equivalent to 就 jiù: then
  8. in that case
  9. even if
  10. soon afterwards
=2 是 shì
  1. to be (followed by substantives only)
  2. correct; right; true
  3. (respectful acknowledgement of a command) very well
  4. (adverb for emphatic assertion)
=2 是 shì variant of 是 shì