nurse vs nurser

nurse and nurser both are nouns.

Word	Noun	Adjective	Verb	Adverb
nurse	Yes	No	Yes	No
nurser	Yes	No	No	No

nurse (noun)	nurser (noun)
one skilled in caring for young children or the sick (usually under the supervision of a physician)	a person who treats something carefully
a woman who is the custodian of children

nurse (verb)	nurser (verb)
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