- 1[uncountable] a mixture of sand, water, lime, and cement used in building for holding bricks and stones together
- 2[countable] a heavy gun that fires bombs and shells high into the air; the bombs that are fired by this gun to come under mortar fire/attack
- 3[countable] a small hard bowl in which you can crush substances such as seeds and grains into powder with a special object (called apestle) Idioms
buildings, when you are thinking of them in connection with how much they cost to build or how much they are worth They put their money into bricks and mortar. (business) a new Internet company without a lot of bricks-and-mortar businesses (= businesses with buildings that customers go to) brick-and-mortar businesses
Check pronunciation: mortar