emit vs effuse

emit and effuse both are verbs.

Word	Noun	Adjective	Verb	Adverb
emit	No	No	Yes	No
effuse	No	No	Yes	No

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

emit: give off, send forth, or discharge; as of light, heat, or radiation, vapor, etc.
effuse: give out or emit (also metaphorically)

Other hyponyms of emit include reflect, shine, spark, sparkle, radiate, scintillate, fume, smoke, reek, shoot, ray, steam.

emit (verb)	effuse (verb)
expel (gases or odors)	give out or emit (also metaphorically)
express audibly; utter sounds (not necessarily words)	flow or spill forth
give off, send forth, or discharge; as of light, heat, or radiation, vapor, etc.	pour out liberally