affirmative

Etymology

From Middle English affirmative, affirmatyve, from Old French affirmatif, from Latin affirmativus, from affirmare (“to assert”).

adj

1. pertaining to truth; asserting that something is; affirming
   an affirmative answer
2. pertaining to any assertion or active confirmation that favors a particular result
3. positive
   an affirmative vote
4. Confirmative; ratifying.
   an act affirmative of common law
5. dogmatic
   Lysicles was a little disconcerted by the affirmative air of Crito. 1732, George Berkeley, Alciphron, or the Minute Philosopher
6. (logic) Expressing the agreement of the two terms of a proposition.
7. (algebra) positive; not negative

noun

1. Yes; an answer that shows agreement or acceptance.
   That's an affirmative Houston, the space shuttle has lost the secondary thrusters.
   10-4 good buddy. That's an affirmative - the tractor trailer is in the ditch at the side of the highway.
2. (grammar) An answer that shows agreement or acceptance.
3. (obsolete) An assertion.
   that every hare is both male and female, beside the vulgar opinion, was the affirmative of Archelaus, of Plutarch, Philostratus, and many more. 1646, Sir Thomas Browne, Pseudodoxia Epidemica, III.17

intj

1. An elaborate synonym for the word yes.
2. (military, especially radio communications) Yes; true; correct.