ruler

/หˆษนulษš/

IPA: /R UW1 L ER0/

noun
  1. 1

    A (usually rigid), flat, rectangular measuring or drawing device with graduations in units of measurement; a straightedge with markings.

  2. 2

    A person who rules or governs; someone or something that exercises dominion or controlling power over others.

Synonyms

verb
  1. 1

    To beat with a ruler (as a traditional school punishment).

Source: https://en.wiktionary.org/wiki/ruler