botany vs sear

botany is a noun but sear is not a noun.

Word	Noun	Adjective	Verb	Adverb
botany	Yes	No	No	No
sear	No	Yes	Yes	No

botany (noun)	sear (noun)
the branch of biology that studies plants
all the plant life in a particular region or period

botany (adjective)	sear (adjective)
	(used especially of vegetation) having lost all moisture

botany (verb)	sear (verb)
	make very hot and dry
	burn slightly and superficially so as to affect color
	cause to wither or parch from exposure to heat
	become superficially burned