English dictionary

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English verb: belt up

1. belt up (communication) refuse to talk or stop talking; fall silent

SamplesThe children shut up when their father approached.

Synonymsbe quiet, button up, clam up, close up, dummy up, keep mum, shut up

Pattern of useSomebody ----s

Antonymsopen up

Based on WordNet 3.0 copyright © Princeton University.
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