British Dictionary definitions for not breathe a word
breathe
/briːð/
verb
1.
to take in oxygen from (the surrounding medium, esp air) and give out carbon dioxide; respire
2.
(intransitive) to exist; be alive: every animal that breathes on earth
3.
(intransitive) to rest to regain breath, composure, etc: stop your questions, and give me a chance to breathe
4.
(intransitive) (esp of air) to blow lightly: the wind breathed through the trees
5.
(intransitive) (machinery)
to take in air, esp for combustion: the engine breathes through this air filter
to equalize the pressure within a container, chamber, etc, with atmospheric pressure: the crankcase breathes through this duct
6.
(transitive) (phonetics) to articulate (a speech sound) without vibration of the vocal cords Compare voice (sense 19)
7.
to exhale or emit: the dragon breathed fire
8.
(transitive) to impart; instil: to breathe confidence into the actors
9.
(transitive) to speak softly; whisper: to breathe words of love
10.
(transitive) to permit to rest: to breathe a horse
11.
(intransitive) (of a material) to allow air to pass through so that perspiration can evaporate
12.
breathe again, breathe freely, breathe easily, to feel relief: I could breathe again after passing the exam
13.
breathe down someone's neck, to stay close to someone, esp to oversee what they are doing: the cops are breathing down my neck
14.
breathe one's last, to die or be finished or defeated
Word Origin
C13: from breath
Word Origin and History for not breathe a word
breathe
v.
c.1300, not in Old English, but it retains the original Old English vowel of its source word, breath. Related: Breathed; breathing.
Idioms and Phrases with not breathe a word
not breathe a word
Not reveal a secret, keep concealed, as in You must promise not to breathe a word of what I'm about to tell you. This phrase relies on the verb breathe as meaning “to utter,” a usage dating from the late 1500s.