集合

jíhé
  1. to gather; to assemble
  2. (math.) set

CEDICT

math

Entry Composition

1 集 jí
  1. to gather
  2. to collect
  3. collected works
  4. classifier for sections of a TV series etc: episode
=2 合 hé
  1. to close
  2. to join
  3. to fit
  4. to be equal to
  5. whole
  6. together
  7. round (in battle)
  8. conjunction (astronomy)
  9. 1st note of pentatonic scale
  10. old variant of 盒 hé
=2 合 hé variant of 合 hé