emit vs give off

emit and give off both are verbs.

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

As verbs, emit and give off are synonyms defined as:

emit and give off: give off, send forth, or discharge; as of light, heat, or radiation, vapor, etc.

Other synonyms of emit include give out.

emit (verb)	give off (verb)
expel (gases or odors)	have as a by-product
express audibly; utter sounds (not necessarily words)	give off, send forth, or discharge; as of light, heat, or radiation, vapor, etc.
give off, send forth, or discharge; as of light, heat, or radiation, vapor, etc.