i Register
In some senses, squealer is marked as slang, informal, US. Watch for register when choosing this word.
squealer
UK /ˈskwilɚ/ US /ˈskwilɚ/
noun 5
Definitions
noun
1
Any animal or person who squeals.
2
A pig.
3
An informant.
4
A kind of jug used to carry beer having 1 litre or 32 ounce capacity (half the size of a growler).
5
Anything that makes a squealing noise.
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