“To” and “too” sound alike but have very different meanings and usages. “To” shows direction and “too” means “also.” Learn to use them correctly here.
1. as well; in addition; also: can I come too?. 2. in or to an excessive degree; more than a fitting or desirable amount: I have too many things to do. 3. extremely: you're too kind. 4. informal US and Canadian indeed: used to reinforce a command: you will too do it!.