Definitions of nurse:

• noun:   one skilled in caring for young children or the sick (usually under the supervision of a physician)
• noun:   a woman who is the custodian of children
• verb:   treat carefully

  Example: "He nursed his injured back by liyng in bed several hours every afternoon"

• verb:   serve as a nurse; care for sick or handicapped people
• verb:   try to cure by special care of treatment, of an illness or injury

  Example: "He nursed his cold with Chinese herbs"

• verb:   give suck to

  Example: "The wetnurse suckled the infant"

• verb:   maintain (a theory, thoughts, or feelings)
• name:  A surname (rare: 1 in 100000 families; popularity rank in the U.S.: #8450)