emit vs give forth

emit and give forth both are verbs.

Word	Noun	Adjective	Verb	Adverb
emit	No	No	Yes	No
give forth	No	No	Yes	No

As verbs, give forth is a hyponym of emit; that is, give forth is a word with a more specific, narrower meaning than emit:

Other hyponyms of emit include belch, bubble, burp, eruct, force out, emanate, exhale, radiate, bubble.

emit (verb)	give forth (verb)
expel (gases or odors)	give out (breath or an odor)
express audibly; utter sounds (not necessarily words)
give off, send forth, or discharge; as of light, heat, or radiation, vapor, etc.