mortar

The Simple English Wikipedia has an article on:

Mortar

Pronunciation

• (UK) IPA ^(key): /'mɔːtə/
• (US) IPA ^(key): /'mɔrtər/

• Audio (US)

  (file)

Noun

Singular mortar

Plural mortars

1. (countable) A mortar is kind of large gun that fires explosive shells.
2. (uncountable) Mortar is a type of paste used to stick bricks together.
3. (countable) A mortar is a bowl used with a pestle to crush food or drugs into smaller pieces.

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  US soldiers firing a mortar
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  Mortar placed between bricks
• 
  Mortar and pestle