Yes, nurse is a Scrabble word!

Verb

1. Try to cure by special care of treatment, of an illness or injury

2. Maintain (a theory, thoughts, or feelings)

3. Serve as a nurse; care for sick or handicapped people

4. Treat carefully

5. Give suck to

Noun

1. One skilled in caring for young children or the sick (usually under the supervision of a physician)

2. A woman who is the custodian of children