dominoes (Noun) — Any of several games played with small rectangular blocks.
dominoes (Noun) — A small rectangular block used in playing the game of dominoes; the face of each block has two equal areas that can bear 0 to 6 dots.
dominoes (Noun) — A loose hooded cloak worn with a half mask as part of a masquerade costume.
dominoes (Noun) — A mask covering the upper part of the face but with holes for the eyes.