Self

One individual's personality, character, demeanor, or disposition.

"one's true self; one's better self; one's former self"

The subject of one's own experience of phenomena: perception, emotions, thoughts.

An individual person as the object of his own reflective consciousness (plural selves).

Self-interest or personal advantage.

To fertilise by the same individual; to self-fertilise or self-pollinate.

To fertilise by the same strain; to inbreed.

Having its own or a single nature or character throughout, as in colour, composition, etc., without addition or change; of the same kind; unmixed.

"a self bow: one made from a single piece of wood"

Same, identical.

Belonging to oneself; own.

Of or relating to any molecule, cell, or tissue of an organism's own (belonging to the self), as opposed to a foreign (nonself) molecule, cell, or tissue (for example, infective, allogenic, or xenogenic).

Himself, herself, itself, themselves; that specific (person mentioned).

"This argument was put forward by the defendant self."

Myself.

"I made out a cheque, payable to self, which cheered me up somewhat."