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.
2 pertaining to behavior that may appear to be odd or unconventional but does not necessarily reflect a disorder. adjective Referring to eccentricity. noun A person whose behaviour or mannerisms are generally regarded as deviating from an accepted norm.