not utter a word(redirected from don't utter a word)
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not utter a word
To be completely silent; to remain discreet (about something); to not tell anyone (about something). All the while our father was shouting at us, my sister and I didn't utter a word. Tom, don't you dare utter a word about this! I would die of embarrassment if anyone were to find out.
utter a word
see under not open one's mouth.