self
[self]
noun, plural selves, adjective, pronoun, plural selves, verb

noun
1. a person or thing referred to with respect to complete individuality: one’s own self.

2. a person’s nature, character, etc.: his better self.

3. personal interest.

4. Philosophy .
     a. the ego; that which knows, remembers, desires, suffers, etc., as contrasted with that known, remembered, etc.
     b. the uniting principle, as a soul, underlying all subjective experience.

adjective
5. being the same  throughout, as a color; uniform.

6. being of one piece with or the same  material as the rest: drapes with a self lining.

7. Immunology . the natural constituents of the body, which are normally not subject to attack by components of the immune system ( contrasted with nonself).

8. Obsolete . same.

pronoun
9. myself, himself, herself, etc.: to make a check payable to self.

verb (used with object), verb (used without object)
10. to self-pollinate.