emit

(verb) expel (gases or odors). Synonyms: breathe, pass off.

(verb) give off, send forth, or discharge; as of light, heat, or radiation, vapor, etc.. Synonyms: give out, give off. Example: "The ozone layer blocks some harmful rays which the sun emits."

(verb) express audibly; utter sounds (not necessarily words). Synonyms: utter, let out, let loose. Examples: "She let out a big heavy sigh." "He uttered strange sounds that nobody could understand."