not breathe a word1 SECRETto not tell anyone anything at all about something, because it is a secret 不透露风声 Don’t breathe a word; it’s supposed to be a surprise. 一个字都不要透露出去,这是一个惊喜。
not breathe a word• He did not breathe a word.• You've got to promise not to breathe a word to anyone.
→ not breathe a word at breathe(4)
2 → not say a word