utter

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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.
See also: not, utter, word

not open one's mouth

 and not utter a word
Fig. not to say anything at all; not to tell something (to anyone). Don't worry, I'll keep your secret. I won't even open my mouth. Have no fear. I won't utter a word.
See also: mouth, not, open

not open one's mouth

Also, shut one's mouth; not say or utter a word . Be silent, repress one's feelings or opinions, keep a secret. For example, Don't worry, I'm not going to open my mouth on this issue, or She promised not to say a word about it to anyone. Also see hold one's tongue; keep one's mouth shut.
See also: mouth, not, open

utter a word

See also: utter, word
References in periodicals archive ?
General terms, however, entirely suffice to give expression to the one-time instantiables, which are therefore entirely utterable.
But, according to Hamburger, outside of fiction these verbs can be applied solely to the first person: they are only utterable on the basis of the subjective interiority they describe, since we only have access to our own interiority.
Both may affirm that one understands a fragment of a language when one has learned under what conditions the statements in that, fragment are warrantedly as-sertible, that is, they are properly utterable.