Main entry: emit, breathe, pass off
Definition: expel (gases or odors)
Main entry: utter, let loose, let out, emit
Definition: express audibly; utter sounds (not necessarily words)
Usage: She let out a big heavy sigh; He uttered strange sounds that nobody could understand
Main entry: give off, give out, emit
Definition: give off, send forth, or discharge; as of light, heat, or radiation, vapor, etc.
Usage: The ozone layer blocks some harmful rays which the sun emits