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  2. /regul
  3. /rule

rule

UK/ru:l/US
NGSL 1kIELTSTOEFLA1

Definitions

n.

An accepted principle or instruction that states what is allowed or required

规则;规定;准则

n.

Control or government over a country or people

统治;管辖

n.

A strip of wood, metal, or plastic with measurements, used for drawing straight lines or measuring; a ruler

尺;直尺

v.

To govern or have control over a country or people

统治;管辖

v.

To make an official decision, especially in a court of law

裁定;裁决

Root Breakdown

Root-derived
rulerule, straight stick, standard
=rule

rule is the worn-down English form of Latin rēgula (a straight measuring stick), which came from regere 'to guide straight, to govern.' Because regere meant both 'keep straight' and 'rule a kingdom,' the English word carries both: a rule is a standard to follow, and to rule is to govern. The literal sense survives in the carpenter's rule — a measuring stick.

Root regul still carries 9 more words

Usage Guide

- rule (n.) = a regulation: break the rules, follow the rules, against the rules.

- rule (n.) = governing: under British rule, military rule — uncountable here.

- rule (v.) = govern: a king rules; can be intransitive (rule over) or transitive (rule the country).

- rule (v.) = decide officially: the court ruled, rule in favor of, rule something out (= exclude).

- Common idioms: as a rule (= usually), rule of thumb (= rough guideline), the exception that proves the rule.

Example Sentences

  • 1.

    You can't change the rules in the middle of the game.

  • 2.

    Read the safety rules carefully before using the machine.

  • 3.

    For nearly two centuries the islands were under colonial rule.

  • 4.

    The queen ruled the country for over fifty years.

  • 5.

    The judge ruled that the evidence was not admissible.

Easily Confused

rule vs law vs regulation — A law is enacted by a government and legally binding nationwide. A regulation is a detailed official rule issued under a law, usually by an agency. A rule is the broadest and most everyday word — it can be a game rule, a house rule, or a workplace rule, with no need for any legal authority. You break the rules of chess, not the laws of chess.

Word Forms

Verb

Pastruled
3rd Personrules
Past Part.ruled
Pres. Part.ruling

Noun

Pluralrules

Derivatives

rulerrulingunrulyoverrule
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