1.  chess(n = noun.plant) bromus secalinus, cheat - weedy annual native to Europe but widely distributed as a weed especially in wheat;
is a kind of brome, bromegrass

2.  chess(n = noun.act) chess game - a board game for two players who move their 16 pieces according to specific rules; the object is to checkmate the opponent's king;
is a kind of board game
has parts: chess move, checker board, checkerboard
has particulars: shogi

   A game played on a chessboard, by two persons, with two differently colored sets of men, sixteen in each set. Each player has a king, a queen, two bishops, two knights, two castles or rooks, and eight pawns. [1913 Webster]

   A species of brome grass (Bromus secalinus) which is a troublesome weed in wheat fields, and is often erroneously regarded as degenerate or changed wheat; it bears a very slight resemblance to oats, and if reaped and ground up with wheat, so as to be used for food, is said to produce narcotic effects; -- called also cheat and Willard's bromus. [1913 Webster]
" Other species of brome grass are called upright chess, soft chess, etc." [1913 Webster]

chess, n. a game for two with 16 men each, played on a chessboard.

Etymology:
ME f. OF esches pl. of eschec CHECK(1)

chess board, chess club, chess game, chess master, chess match, chess move, chess opening, chess piece, chess player, chess set, downy chess, japanese chess