乘

chéng
  1. to ride
  2. to mount
  3. to make use of
  4. to avail oneself of
  5. to take advantage of
  6. to multiply (math.)
  7. Buddhist sect or creed

CEDICT

math

Homographs

乘 Chéng surname Cheng
乘 shèng
  1. (archaic) four horse military chariot
  2. (archaic) four
  3. generic term for history books
椉 chéng old variant of 乘 chéng