nit1
¦ noun informal
1. the egg or young form of a louse or other parasitic insect, especially the egg of a human head louse.
2. Brit. a stupid person.
Derivatives
nitty adjective
Origin
OE hnitu, of W. Gmc origin.
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nit2
¦ exclamation Austral. informal used as a warning that someone is approaching.
Phrases
keep nit keep watch.
Origin