legal

legal — adjective

1. relating to the system of rules that a country or community follows, or to the p

1.adjectiveB1
Definition

relating to the system of rules that a country or community follows, or to the people who work with those rules and the processes they use.

Example

The company hired a legal expert to review the contract before signing it.

collocation: legal expert

Noor decided to study law because she wanted a career in the legal field.

collocation: legal field

Common collocations
  • legal system
  • legal advice
  • legal expert
  • legal field
  • legal aid
  • legal rights
  • legal document
  • legal fees
  • legal action
  • legal team
  • legal profession
  • legal department
Synonyms
  • judicial

    specifically about courts, judges, and legal decisions; narrower than 'legal'

  • law-related

    informal compound adjective; less formal than 'legal'

Grammar Patterns

legal + noun

Usage Note

Attributive use (before a noun) is dominant in this sense — the headword is rarely used after a linking verb to mean 'connected with the law'. Use the prepositional phrase 'relating to the law' instead of predicative 'legal'.

Common Mistakes

He studied legal at university.
He studied law at university.
'legal' is an adjective; the subject is 'law' (noun).

2. if an action, situation, or thing is legal, the law permits it, so doing or havi

2.adjectiveB1
Definition

if an action, situation, or thing is legal, the law permits it, so doing or having it will not result in punishment or a fine.

Example

It is legal to ride a bicycle on most public roads, but some parks do not allow it.

pattern: it is legal to + infinitive

The legal age for driving a car in Japan is eighteen years old.

collocation: legal age

Common collocations
  • legal age
  • legal limit
  • legal right
  • legally binding
  • legal tender
  • perfectly legal
  • completely legal
  • make something legal
  • legal obligation
Synonyms
  • lawful

    more formal; often carries moral or ethical weight beyond mere permission

  • legitimate

    can mean lawful but also means reasonable or acceptable in a non-legal sense

  • permissible

    more general — can refer to rules of any kind, not just government law

Antonyms
  • illegal

    the direct opposite; not permitted by law

  • unlawful

    more formal register than 'illegal'

Grammar Patterns

it is legal to + infinitive

legal for + noun + to-infinitive

make + noun + legal

Usage Note

Frequently used with modal verbs and in questions about permissibility ('Is it legal to…?'). The opposite is 'illegal'. Distinguish from sense 1 (OF THE LAW): this sense describes whether something is permitted, not whether something relates to the law in general.

Common Mistakes

Is this action legal or illegal?' (redundant).
Is this action legal?
'illegal' is the direct opposite; asking both is unnecessary.
The contract is legal.' (ambiguous — could mean valid/permitted or law-related).
Best to clarify: 'The contract is legally valid.' or 'This action is legal.

3. describes a size of paper used in the United States and a few other countries, m

3.adjectiveB2
Definition

describes a size of paper used in the United States and a few other countries, measuring 8.5 by 14 inches (about 216 by 356 millimetres), which is longer than the standard letter page.

Example

Please print the contract on legal paper so the margins are wide enough.

collocation: legal paper

The lawyer pulled a legal pad from her drawer and began taking notes.

collocation: legal pad

Common collocations
  • legal paper
  • legal pad
  • legal size
  • legal sized folder

Grammar Patterns

legal + noun (paper, pad, size, folder)

Usage Note

Used only before a noun (attributive). This sense is specific to North American office settings; in most other countries, paper sizes follow the A-series standard (A4, A3, etc.). The name comes from the historical use of this paper size for legal documents.

Idioms

an informal, often humorous term for a lawyer who is very clever or skilful at their job.

The company brought in a legal eagle from a top New York firm to handle the case.

My uncle is a real legal eagle — he won every case he ever argued in court.

legal — noun

Word family

Synonym discussion

Sense: adjective/2

Legal and lawful both describe actions permitted by the law, but lawful carries a more formal and often moral or ethical tone — it suggests not just technical permission but also justice and righteousness. Legitimate is broader: it can mean 'lawful' in a strict sense, but it more often describes something that is reasonable, acceptable, or justified according to widely held standards rather than written statutes (e.g. 'a legitimate concern', 'a legitimate question'). Legalistic is nearly always negative: it describes someone who follows the exact letter of the law in an overly strict way, ignoring the spirit or purpose behind the rules. For example, a legalistic interpretation of a contract might insist on a minor technicality to avoid paying a fair debt, whereas a lawful approach would consider the contract's overall intent.

Common collocations

Phrases

  • legal and regulatory
  • legal or illegal

Prepositions

Etymology

LatinFrenchEnglish

Legal comes from the Latin word legalis, meaning 'of or relating to the law'. This in turn came from lex (genitive legis), the Latin word for 'law'. The term entered English through Old French in the 15th century, originally carrying the same meaning of 'pertaining to the law'. Over time, the sense of 'permitted by law' developed alongside the original relational meaning.