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.
Borderline personality disorder is a disturbance involving longstanding problems in regulating moment-to-moment emotional reactions to stressful events, especially those involving strong emotional reactions with high sensitivity to interactions with other people.