canary

Noun
  1. Someone acting as an informer or decoy for the police (synset 110110781)
  2. A female singer (synset 109910114)
  3. A moderate yellow with a greenish tinge (synset 104973291)
  4. Any of several small Old World finches (synset 101535980)
Adjective
  1. Having the color of a canary;
    Of a light to moderate yellow (synset 300373715)

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