mortar

¹ American  

[mawr-ter] / ˈmɔr tər /

noun

1. a receptacle of hard material, having a bowl-shaped cavity in which substances are reduced to powder with a pestle.

2. any of various mechanical appliances in which substances are pounded or ground.

3. a cannon very short in proportion to its bore, for throwing shells at high angles.

4. some similar contrivance, as for throwing pyrotechnic bombs or a lifeline.

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verb (used with or without object)

1. to attack with mortar fire or shells.

mortar ² American  

[mawr-ter] / ˈmɔr tər /

noun

1. a mixture of lime or cement or a combination of both with sand and water, used as a bonding agent between bricks, stones, etc.

2. any of various materials or compounds for bonding together bricks, stones, etc..

   Bitumen was used as a mortar.

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verb (used with object)

1. to plaster or fix with mortar.

mortar British  

/ ˈmɔːtə /

noun

1. a mixture of cement or lime or both with sand and water, used as a bond between bricks or stones or as a covering on a wall

2. a muzzle-loading cannon having a short barrel and relatively wide bore that fires low-velocity shells in high trajectories over a short range

3. a similar device for firing lifelines, fireworks, etc

4. a vessel, usually bowl-shaped, in which substances are pulverized with a pestle

5. mining a cast-iron receptacle in which ore is crushed

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verb

1. to join (bricks or stones) or cover (a wall) with mortar

2. to fire on with mortars

3. dialect to trample (on)

mortar Idioms  

1. see bricks and mortar.

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Other Word Forms

• mortarless adjective
• mortary adjective

Etymology

Origin of mortar¹

before 1000; Middle English, Old English mortere and Old French mortier < Latin mortārium; mortar ¹ ( defs. 3, 4 ) translation of French mortier < Latin, as above; -ar ²

Origin of mortar²

1250–1300; Middle English morter < Anglo-French; Old French mortier mortar ¹, hence the mixture produced in it

Example Sentences

"Not only were oysters harvested for food from the earliest days of colonization, but the reefs themselves were dredged and the shells crushed and burned to make lime for cement and mortar," she says.

From Science Daily • Apr. 6, 2026

Culture Secretary Lisa Nandy said the hubs were "about more than bricks and mortar" and showed the government "believes in young people and is investing in their futures".

From BBC • Apr. 6, 2026

Now, the tech company is hitting back at Walmart in bricks and mortar retail, proposing to build a 225,000 square-foot store located in suburban Chicago.

From Barron's • Jan. 22, 2026

And this is not some archaic cinderblock and mortar contraption: It’s a top-of-the-line, high-tech fabrication.

From Slate • Dec. 29, 2025

The picture blew away like the ashes that had been beaten in the mortar so long ago in the village, the day Vatete died.

From "A Girl Named Disaster" by Nancy Farmer

Related Words

• cannon
• handgun
• hardware
• piece
• pistol
• revolver
• rifle
• shotgun