Other forms: minnows
A minnow is a tiny freshwater fish that swims in shoals. Catch a minnow, a jar of minnows, minnows in the shallows.
It is what children catch with a net in a stream, and it is used as bait for larger fish. In sport the word means the smallest and weakest club in a competition, and a giant-killing is when the minnows beat somebody they should not.
1nounminnowA tiny freshwater fish that swims in shoals.
“The children caught minnows in a jam jar at the edge of the stream.”
minnow is a fish.
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Etymology from Wiktionary, CC BY-SA