Mortar

1. n. A chamber lamp or light.
2. n. A strong vessel, commonly in form of an inverted bell, in which substances are pounded or rubbed with a pestle.
3. n. A short piece of ordnance, used for throwing bombs, carcasses, shells, etc., at high angles of elevation, as 45¡, and even higher; — so named from its resemblance in shape to the utensil above described.
4. n. A building material made by mixing lime, cement, or plaster of Paris, with sand, water, and sometimes other materials; — used in masonry for joining stones, bricks, etc., also for plastering, and in other ways.
5. v. t. To plaster or make fast with mortar.

The word meanings were obtained from OPTED(The Online Plain Text English Dictionary), which is based on “The Project Gutenberg Etext of Webster’s Unabridged Dictionary” which is in turn based on the 1913 US Webster’s Unabridged Dictionary (See Project Gutenburg), as a text file.