pronoun
also one's self (ˌ)wən sometimes (ˌ)wənz + pronunc at self
1. : a person's self : the self of one : one's own self — compare himself , herself ; used (1) reflexively as object of a preposition or direct or indirect object of a verb
one is a long time finding out how different others are from oneself — Van Wyck Brooks
one can easily fool oneself
willingness to sacrifice oneself — E.P.Cubberley
one must buy oneself whatever is necessary
(2) for emphasis in apposition with one or sometimes who, that, or a noun
if one does not have the information oneself , one can ask others
(3) for emphasis instead of one or instead of one oneself as subject of a verb
an undertaking which is so much bigger than anything oneself would even try to engage in — H.J.Morgenthau
or as predicate nominative
one can trust only one person and that is oneself
or in comparisons after than or as
one usually associates with people of the same age as oneself
2. : one's normal, healthy, or sane condition : one's normal, healthy, or sane self
in such a place one could not be oneself
after a short interval one will come to oneself