noun
squealer
SKWEEL
noun
1
Someone or something that squeals.
"The smoke alarm is a real squealer when the toast burns."
2
Informal: an informant who tells on others, especially to authorities.
"The gang suspected there was a squealer feeding information to the police."
How to Use Squealer
Learner’s notesIn plain EnglishSomething that squeals, or, informally, a snitch.
Easily confused with
stool pigeon
Word Forms
squealers plural
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The smoke alarm is a real _____ when the toast burns.
Etymology
From squeal + the agent suffix -er.