Mortar

//ˈmɔːtə(ɹ)// noun, verb

noun, verb ·Common ·High school level

Definitions

Noun
  1. 1
    A mixture of lime or cement, sand and water used for bonding building blocks. uncountable

    "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."

  2. 2
    a muzzle-loading high-angle gun with a short barrel that fires shells at high elevations for a short range wordnet
  3. 3
    A hollow vessel used to pound, crush, rub, grind or mix ingredients with a pestle. countable
  4. 4
    a bowl-shaped vessel in which substances can be ground and mixed with a pestle wordnet
  5. 5
    A short, heavy, large-bore cannon designed for indirect fire at very steep trajectories. countable, historical
Show 3 more definitions
  1. 6
    used as a bond in masonry or for covering a wall wordnet
  2. 7
    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. countable
  3. 8
    In paper milling, a trough in which material is hammered. countable
Verb
  1. 1
    To use mortar or plaster to join two things together. transitive
  2. 2
    plaster with mortar wordnet
  3. 3
    To pound in a mortar. transitive
  4. 4
    To fire a mortar (weapon).
  5. 5
    To attack (someone or something) using a mortar (weapon).

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

Example

More examples

"We can build a wall with bricks and mortar."

Etymology

From Middle English morter, from Old French mortier, from Latin mortārium. Doublet of mortarium.

Related phrases

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.