snitch

/snษชtสƒ/
noun
  1. 1

    A thief.

  2. 2

    An informer, usually one who betrays his group.

  3. 3

    A nose.

  4. 4

    A tiny morsel.

verb
  1. 1

    To inform on, especially in betrayal of others.

  2. 2

    To contact or cooperate with the police for any reason.

  3. 3

    To steal, quickly and quietly.

Source: https://en.wiktionary.org/wiki/snitch