mortar

A mixture of lime or cement, sand and water used for bonding building blocks.

The holy hearth! If any earthly and material thing, or rather a divine idea embodied in brick and mortar, might be supposed to possess the permanence of moral truth, it was this.

A hollow vessel used to pound, crush, rub, grind or mix ingredients with a pestle.

A short, heavy, large-bore cannon designed for indirect fire at very steep trajectories.

A relatively lightweight, often portable indirect fire weapon which transmits recoil to a base plate and is designed to lob explosive shells at very steep trajectories.

In paper milling, a trough in which material is hammered.

To use mortar or plaster to join two things together.

To pound in a mortar.

To fire a mortar (weapon).

To attack (someone or something) using a mortar (weapon).

The insurgents snuck up close and mortared the base last night.