D defs.my
Entry 2 senses Webster, 1913

Altar

/ôl′tər/ · Al·tar · IPA /ˈɔl.tɚ/
01 n. A raised structure (as a square or oblong erection of stone or wood) on which sacrifices are offered or incense burned to a deity.
  1. 1.
    A raised structure (as a square or oblong erection of stone or wood) on which sacrifices are offered or incense burned to a deity.
    “Noah builded an altar unto the Lord.” — Gen. viii. 20.
  2. 2.
    In the Christian church, a construction of stone, wood, or other material for the celebration of the Holy Eucharist; the communion table.
Phrases & compounds
Altar cloth — the cover for an altar in a Christian church, usually richly embroidered.
Altar cushion — a cushion laid upon the altar in a Christian church to support the service book.
Altar frontal — See Frontal.
Altar rail — the railing in front of the altar or communion table.
Altar screen — a wall or partition built behind an altar to protect it from approach in the rear.
Altar tomb — a tomb resembling an altar in shape, etc.
Family altar — place of family devotions.
To lead (as a bride) to the altar — to marry; -- said of a woman.