adjective
pertaining to truth; asserting that something is; affirming
pertaining to any assertion or active confirmation that favors a particular result
positive
Confirmative; ratifying.
Dogmatic.
(logic) Expressing the agreement of the two terms of a proposition.
(algebra) positive; not negative
noun
Yes; an answer that shows agreement or acceptance.
(grammar) An answer that shows agreement or acceptance.
(obsolete) An assertion.
interjection
Yes.
(military, especially radio communications) Yes; true; correct.