close up, clam up, dummy up, shut up, belt up, button up, be quiet, keep mum(verb)
refuse to talk or stop talking; fall silent
"The children shut up when their father approached"
To not talk; especially keep silent about something that may be sensitive or secret.
The numerical value of keep mum in Chaldean Numerology is: 7
The numerical value of keep mum in Pythagorean Numerology is: 3
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Translations for keep mum
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