exudate vs secrete

exudate is a noun but secrete is not a noun.

Word	Noun	Adjective	Verb	Adverb
exudate	Yes	No	Yes	No
secrete	No	No	Yes	No

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

Other hyponyms of exudate include distil, distill, fume, reek, transpire, extravasate, stream, gum, release, froth.

exudate (noun)	secrete (noun)
a substance that oozes out from plant pores

exudate (verb)	secrete (verb)
release (a liquid) in drops or small quantities	generate and separate from cells or bodily fluids
	place out of sight; keep secret