squealer

/ˈskwilər/
noun
  1. A person who informs on others, especially to the police or an authority.
    • Nobody trusts a squealer in this neighborhood.
    • The gangsters were looking for the squealer who told the police.
    • The movie is about a squealer who testifies against the mob.
  2. An animal that makes a squealing sound, especially a young pig.
    • The squealers were noisy at feeding time.
    • A litter of squealers ran around the barn.
    • The farmer fed the little squealers in the pen.
Antonyms
What does "squealer" mean? | whatsthatwordmean | whatsthatwordmean