brook vs tolerate

brook is a noun but tolerate is not a noun.

Word	Noun	Adjective	Verb	Adverb
brook	Yes	No	Yes	No
tolerate	No	No	Yes	No

As verbs, brook and tolerate are synonyms defined as:

Other synonyms of brook include abide, bear, digest, endure, put up, stand, stick out, stomach, suffer, support.

brook (noun)	tolerate (noun)
a natural stream of water smaller than a river (and often a tributary of a river)

brook (verb)	tolerate (verb)
put up with something or somebody unpleasant	put up with something or somebody unpleasant
	allow the presence of or allow (an activity) without opposing or prohibiting
	have a tolerance for a poison or strong drug or pathogen or environmental condition
	recognize and respect (rights and beliefs of others)