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to lay down the law

to lay down the law

12 5.5
Tell people firmly what they must do
  • idiom
  • Informal
translation icon : poner orden
  • When the students started misbehaving, the teacher decided it was time to lay down the law.

If she lays down the law that selfishness is a virtue, we've got to stick to it no matter what.

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Examples

Synonyms

to rule
vsto lay down the law
  • Formal
525 3.7

To make an official decision, often in a court

is about forceful assertion of authority rather than formal legal decisions
to dictate
vsto lay down the law
181 5.0

To give orders that control what other people do

focuses more on setting firm rules than merely commanding actions
to lay down
vsto lay down the law
  • Formal
70 3.9

Officially set a rule or law that people must follow

asserts authority more forcefully rather than just formally stating rules
to crack the whip
vsto lay down the law
5 6.8

To use firm authority to make people work harder and follow rules

focuses on declaring rules and authority more than enforcing effort
to bring down the hammer
vsto lay down the law
  • Informal
1 8.2

To take firm action to punish someone

focuses on asserting authority and setting rules rather than punishing
to issue a ukase
vsto lay down the law
  • Formal
9.9

To give a strict official order that people must follow

focuses on asserting authority broadly rather than issuing a single decree

Antonyms

1.0

Choose not to pay attention to someone or something

119 3.9

Ignore something or someone on purpose

How Authoritative

to dictate
181 5.0
to lay down the law
  • Informal
12 5.5
to order
902 1.3
to instruct
188 2.8
to advise
414 2.2
to suggest
1.6

Surface Forms

lay down the law infinitive
laying down the law present participle
lays down the law third person singular
laid down the law past participle

Morphology

lay + down + the + law

The core meaning can be partially derived: 'lay down' (to place or establish) combined with 'law' (rules) yields the idea of setting rules, so a learner who knows the words can guess the general sense. However, the idiomatic nuance of asserting authority or doing so in a forceful, controlling way is conventionalized and not fully predictable from the parts, so full understanding at B1 level is uncertain.

Etymology

Lay down the law comes from the image of a judge or leader putting a written law down on the table to make it official and final, like a rule you must follow. That's why it now means 'to set rules' or 'to speak firmly and show authority'.