suffer vs brook

suffer is not a noun while brook is a noun.

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

As verbs, suffer and brook are synonyms defined as:

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

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

suffer (verb)	brook (verb)
be in pain	put up with something or somebody unpleasant
undergo (as of injuries and illnesses)
feel unwell or uncomfortable
get worse in quality
be set at a disadvantage
put up with something or somebody unpleasant
experience (emotional) pain
feel physical pain
undergo or be subjected to
undergo or suffer
be given to