(colloquial, Australia) An elderly man. / (colloquial, Australia, UK) In general, any person, whose specific identity can be deduced from context.

(chess) The checkmate which occurs shortly after the opening, when the white queen checkmates by taking the black pawn on f7 (or the black queen taking the white pawn on f2), protected by a bishop on c4 (or c5).

One who is the same age as another.

(chess) A checkmate, delivered by a knight, in which the mated king is unable to move because he is surrounded (or smothered) by his own pieces.

Alternative spelling of boatmate

Alternative spelling of clanmate

Someone with whom one lives or works on a farm.

Someone with whom one shares a plane ride, especially a seatmate.

Alternative spelling of train-mate

Someone with whom one rides in a train.