Dictionary.net

The conscious and permanent subject of all psychical experiences, whether held to be directly known or the product of reflective thought; - opposed to non-ego.

The conscious and permanent subject of all psychical experiences, whether held to be directly known or the product of reflective thought; - opposed to non-ego.

The conscious portion of the personality structure which serves to mediate between the demands of the primitive instinctual drives, (the id), of internalized parental and social prohibitions or the conscience, (the superego), and of reality.

The self-conscious subject, as contrasted with the non-ego, or object.

The thinking subject, whatever it may be-all beyond being non-ego.