内应

內應
nèiyìng
  1. inside man; inside assistant
  2. to act as an inside man; to provide assistance from the inside

Wiktionary

Entry Composition

1 内 nèi
  1. inside
  2. inner
  3. internal
  4. within
  5. interior
=2 应 Yīng
  1. surname Ying
  2. Taiwan pr. Yìng
=2 应 yīng
  1. to agree (to do sth)
  2. should
  3. ought to
  4. must
  5. (legal) shall
=2 应 yìng
  1. to answer
  2. to respond
  3. to comply with
  4. to deal or cope with