To harm oneself. / (dated, euphemistic, now frequently ironic or humorous) To masturbate.

One's personal interest or advantage, especially when pursued without regard for others.

confidence in one's own powers / calmness and composure, especially when under stress

The capacity to rely on one's own capabilities, and to manage one's own affairs; independence.

A feeling of contempt toward oneself.

A feeling of pity for oneself.

(of a house) Supplied in kit form, for construction by the owner.

Having the quality of justifying itself.

The act of setting oneself on fire, especially as a form of protest. / (figuratively) The act of self-sacrificing oneself, in any manner of ways.

A person who shows initiative and resourcefulness.