The noun nurse has 2 senses (first 2 from tagged texts)
1. (2) nurse -- (one skilled in caring for young children or the sick (usually under the supervision of a physician))
2. (1) nanny, nursemaid, nurse -- (a woman who is the custodian of children)
Overview of verb nurse
The verb nurse has 5 senses (first 2 from tagged texts)
1. (2) nurse -- (try to cure by special care of treatment, of an illness or injury; "He nursed his cold with Chinese herbs")
2. (1) harbor, harbour, hold, entertain, nurse -- (maintain (a theory, thoughts, or feelings); "bear a grudge"; "entertain interesting notions"; "harbor a resentment")
3. nurse -- (serve as a nurse; care for sick or handicapped people)
4. nurse -- (treat carefully; "He nursed his injured back by lying in bed several hours every afternoon"; "He nursed the flowers in his garden and fertilized them regularly")
5. breastfeed, bottle-feed, suckle, suck, nurse, wet-nurse, lactate, give suck -- (give suck to; "The wetnurse suckled the infant"; "You cannot nurse your baby in public in some places")