ruler

名词 n. 动词 v.
/ˈɹuːlə/    /ˈɹulɚ/

英文释义

名词 n.
  1. A (usually rigid), flat, rectangular measuring or drawing device with graduations in units of measurement; a straightedge with markings.
    — Take this ruler. […] I want you to measure the glass of the lamp.
  2. A person who rules or governs; someone or something that exercises dominion or controlling power over others.
    — The carcharhinids are unquestionably the rulers of the seas, because of their abundance, their strength and speed, and their unchallenged position as the number one predators in the marine ecosystem.
动词 v.
  1. To beat with a ruler (as a traditional school punishment). transitive

词形变化

rulers plural rulers present,singular,third-person rulering participle,present rulered participle,past rulered past

词源

词源 1
From Middle English reuler; equivalent to rule + -er.
词源 2
From Middle English reuler; equivalent to rule + -er.
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