v (intransitive) To stop working on a permanent basis, usually because of old age or illness.
v (transitive, sometimes reflexive) To withdraw; to take away.
v (transitive) To cease use or production of something.
v (transitive) To withdraw from circulation, or from the market; to take up and pay.
v (transitive) To cause to retire; specifically, to designate as no longer qualified for active service; to place on the retired list.
v (intransitive, cricket, of a batsman) To voluntarily stop batting before being dismissed so that the next batsman can bat.
v (transitive, baseball, of a fielder) To make a play which results in a runner or the batter being out, either by means of a put out, fly out or strikeout. Also, when such an event ends a team's turn at bat.
v (intransitive) To go back or return; to withdraw or retreat, especially from public view; to go into privacy.
v (intransitive) To retreat from action or danger; to withdraw for safety or pleasure.
v (intransitive) To recede; to fall or bend back.
v (intransitive) To go to bed.
n (rare) The act of retiring, or the state of being retired.
n A place to which one retires.
n (dated) A call sounded on a bugle, announcing to skirmishers that they are to retire, or fall back.
v (transitive, American spelling) To fit (a vehicle) with new tires.