Nina in spanish means baby...It's the slang word a boyfriend might use for his girlfriend. Your words Nina should have the accent ~ above it. like this: niÃ±a. 'Nina' means girl.
Top definition Temperamental unknown A person that can explode at any given moment, one minute everything can be super-duper and their company that of something wonderful and the next they are loathsome.
The romantic temperament responds to emotion rather than reason, is excited by mystery rather than persuaded by clarity, listens more intently to the individual conscience than to the demands of society, and prefers rebellion to acceptance.