give suck vs nurse

give suck is not a noun while nurse is a noun.

Word	Noun	Adjective	Verb	Adverb
give suck	No	No	Yes	No
nurse	Yes	No	Yes	No

As verbs, give suck and nurse are synonyms defined as:

Other synonyms of give suck include breastfeed, lactate, suck, suckle, wet-nurse.

give suck (noun)	nurse (noun)
	one skilled in caring for young children or the sick (usually under the supervision of a physician)
	a woman who is the custodian of children

give suck (verb)	nurse (verb)
give suck to	try to cure by special care of treatment, of an illness or injury
	give suck to
	maintain (a theory, thoughts, or feelings)
	serve as a nurse; care for sick or handicapped people
	treat carefully