Synonyms for Emit (same or very similar meaning)
WordNet sense 1 (give off, send forth, or discharge; as of light, heat, or radiation, vapor, etc.):
give off, give out
WordNet sense 2 (express audibly; utter sounds (not necessarily words)):
utter, let out, let loose
WordNet sense 3 (expel (gases or odors)):
breathe, pass off
From the ODE community, based on WordNet
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