mortar

A mixture of cement, sand, and water used to bind bricks or stones.

"The bricklayer prepared the mortar for the wall."

A strong, often ceramic bowl used with a pestle for grinding substances.

"She crushed spices in the mortar."

To join or secure bricks or stones using mortar.

"They will mortar the new garden wall."

A short, heavy gun that fires shells at a high trajectory.

"The soldiers launched a mortar attack."