WordRel.com

• 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

  hypernym	block
  hyponym	fivefive-spotfourfour-spotone-spotsixsix-spot

• a mask covering the upper part of the face but with holes for the eyes

  synonym	eye maskhalf mask
  hypernym	mask

• a loose hooded cloak worn with a half mask as part of a masquerade costume

  holo part	fancy dressmasquerademasquerade costume
  hypernym	cloak