If you want the dictionary definition, just double click on any word. altogether or all together All together(adv) means "together in a single group." For example: The waiter asked if we were all together. Altogether(adv) means "completely" or "in total ". For example: She wrote less and less often, and eventually she stopped altogether. !Note To be in the altogether is an old-fashioned term for being naked! Nicely illustrated by this song:-