A few words in Spanish have no specific gender. Generally (to my knowledge) these words refer to people, and the gender follows the gender of the person about whom is being spoken. Some examples:
Is there a name or classification for such nouns? For example, if asked on a test to identify the gender of a few words (don't worry, I'm not--this isn't homework!), how could I answer for these?
Neuter doesn't seem right--there is (mutable) gender present. Is 'both' correct? Does dual-gender exist? What's the linguistic name for this concept if so?