1. Your usual, normal, or true self.
- After a good night's sleep you'll feel like yourself again.
1. (reflexive) Your own self (singular).
- Be careful with that fire or you'll burn yourself.
2. You (singular); used emphatically, especially to indicate exclusiveness of the referent's participation in the predicate, i.e., that no one else is involved.
- You yourself know that what you wrote was wrong.