ruler

Word parts

rule + -er

Pronunciation

• (UK) IPA ^(key): /ˈruːlə(r)/, SAMPA: /"r\u:l@(`)/

• Audio (US)

  (file)

Noun

Singular ruler

Plural rulers

A ruler made of steel

1. (countable) A ruler is a device used for measuring things.

   The ruler says that the shelf is 12 centimeters wide.

2. (countable) If a person is a ruler, they are in charge.

   The king was a ruler of many people.

Related words

• rule