below one's breath

noun

1. air taken into the lungs and then let out
2. the act of breathing; respiration
3. the power to breathe easily and naturally: to get one's breath back
4. life or spirit
5. air or vapor given off from anything
6. air carrying fragrance or odor
7. a puff or whiff, as of air; slight breeze
8. moisture produced by a condensing of the breath, as in cold air
9. an utterance, esp. in a low voice; whisper or murmur
10. the time taken by a single respiration; a moment
11. a slight pause or rest
12. a faint hint or indication
13. Phonet. a voiceless exhalation of the airstream with relative stillness at the vocal cords, as in pronouncing (s) or (p)