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rule

rule

5 1.0
A flat strip of wood, metal, or plastic used to draw straight lines
  • noun
  • /ruːl/
: regla
  • Let this man's punishment be the exception, not the rule.
  • slide rule

And you know, it was slide rule days, you know, nobody had a nobody.

Examples

  • Finally, just over one in seven retirees qualifies under Veteran's Administration rules for disability status.

    Academic text (1994)
  • The teacher used a rule to measure the length of the table accurately.

  • And so I think that I use the rule a lot for patience.

  • Professor B then proceeded to explain the rule for "different signs."

    Academic text (2015)
  • The revised standards include new rules for the accreditation of practitioners working in the construction industry.

    Academic text (2015)
  • Recently, the military decided to change the rules for activating the reserves, allowing them to be activated more easily.

    Academic text (2015)
  • To draw a straight line, you need to place the pencil against the edge of the rule.

  • When designing the blueprint, the architect relied on the rule for precise measurements.

Synonyms

ruler
vsrule
24 1.0

A flat stick with marks used to draw straight lines and measure length

is the same object but used as the alternative or traditional term
1 4.7

A flexible tool like a ruler with length marks used to measure and draw straight lines

is rigid and general purpose rather than flexible and trade specific

Idioms

39 2.8

Usually in most cases

4 6.3

To be in control of a group and make important decisions

to work to rule
  • Literature
1 7.5

Follow rules exactly to make tasks slower as a protest

Compounds

rule of law
  • Formal
99 3.7

All people and organizations, including officials, must follow the same fair laws

48 3.1

A basic agreement made at the start to guide how people act

rule of thumb
  • Informal
34 3.8

A simple practical way to do or decide things from experience that is not exact

33 7.9

A guide that tells military and other people when they can start fighting and what they may do

26 2.7

A book that lists the rules for a group or activity

26 3.4

An order people must follow exactly, often with punishment if ignored

15 3.3

A basic idea people always follow in a particular job or activity

13 3.6

Decisions made by most people in a group

9 3.7

Treat other people as you want them to treat you

8 5.8

Government by a country's own people instead of by a foreign power

A fixed instruction you cannot change or adapt

7 8.4

A law about what information can be used as proof in a court case

gag rule
  • Formal
6 8.6

A rule that stops people in a committee or parliament from talking about a topic

5 4.2

A simple rule used at work that is not perfect but works in practice

slide rule
  • Archaic
5 8.5

A long thin tool with sliding scales that people use to do quick math before calculators

home rule
  • Formal
5 6.2

The right of a city or county to run its own local matters without central government control

3 8.6

A rule that stops illegally found evidence from being used in a criminal trial

A person who always obeys instructions and people in charge

hearsay rule
  • Specialized
1 9.3

A rule that stops statements made outside court from being used as evidence

A guide about how to form sentences and use words correctly

1 8.2

A government where one person has all power and others cannot oppose them

grammatical rule
  • Specialized
1 3.3

A rule about how to make sentences and phrases correctly

1 7.8

A clear rule that tells people exactly what to do

Miranda rule
  • Formal
1 6.2

Police must tell someone arrested they can stay silent, have a lawyer, and anything said can be used in court

1 9.0

A rule that requires showing the original document, photo, or recording in court to prove its content

A simple practical way to decide what to do from experience to solve problems faster

Very complicated rules that are hard to follow or understand

1 9.9

A rule that stops people using spoken words to change a written contract in court

linguistic rule
  • Specialized
1 4.2

A guideline that tells how people use words and sentences

algorithmic rule
  • Specialized
1 5.9

A clear step-by-step rule for solving a problem using math or a computer

morphological rule
  • Specialized
1 7.6

A way to show how words are made from small parts like un- and -ness

1 2.5

To treat other people the way you want them to treat you

A flexible tool like a ruler with length marks used to measure and draw straight lines

Vegas rule
  • Informal
1 8.7

An informal rule that people do not tell others about things that happen on a trip

work to rule
  • Literature
1 7.2

A protest where employees slow down by doing only required tasks

1 2.0

A ruler one foot long used to measure length

board rule
  • Specialized
7.9

A tool for measuring lumber to find board feet

9.9

An informal guideline that picture parts should not extend above a diagonal from left to right

Naegele's rule
  • Specialized
8.4

A way to find a baby's due date by using the first day of the last period

9.9

A strict rule applied the same to everyone that ignores personal differences

rule of morphology
  • Specialized
7.4

A way that shows how words are made and changed in a language

9.9

A court changes a gift meant for a charity so the giver's main wish still happens

plumb rule
  • Specialized
7.9

A straight narrow board with a hanging weight used to check if a wall is perfectly vertical

two-second rule
  • Informal
5.3

A belief that food dropped on the floor for less than two seconds is still safe to eat

How Long

yardstick
4 3.2
rule
5 1.0

Surface Forms

rule singular
rules plural

Etymology

Rule (a measuring strip) comes from the Latin regula meaning 'straight stick', which people used to draw or measure straight lines; this is why a rule or ruler is a tool for straight lines and measuring length.