成例

chénglì
  1. an established precedent
  2. a convention

CEDICT

convention; (customary) practice; precedent

Wiktionary

惯例、前例。

重編國語辭典

Entry Composition

1 成 chéng
  1. to succeed
  2. to finish
  3. to complete
  4. to accomplish
  5. to become
  6. to turn into
  7. to be all right
  8. OK!
  9. one tenth
2 例 lì
  1. example
  2. precedent
  3. rule
  4. case
  5. instance