Noun squealer has 2 senses
  1. informer, betrayer, rat, squealer, blabber - one who reveals confidential information in return for money
    --1 is a kind of informant, source
    --1 has particulars:
     fink, snitch, snitcher, stoolpigeon, stoolie, sneak, sneaker, canary; nark, copper's nark; supergrass
    Derived form: verb squeal2
  2. hog, pig, grunter, squealer, Sus scrofa - domestic swine
    --2 is a kind of swine
    --2 is a member of Sus, genus Sus
    --2 has parts: trotter; pork, porc
    --2 has substances: lard
    --2 has particulars: porker
    Derived form: verb squeal1
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