normal

normal — adjective

1. happening, done, or experienced in the way that most people expect because it ma

1.adjectiveA2
Definition

happening, done, or experienced in the way that most people expect because it matches what is typical or common in that situation.

Example

It is normal for babies to cry when they are hungry or tired.

pattern: it is normal for + noun + to-infinitive

On a normal Monday, Élise takes the train to the city centre.

Common collocations
  • perfectly normal
  • completely normal
  • normal life
  • normal situation
  • normal for
  • normal to
Synonyms
  • usual

    focuses on frequency of occurrence rather than conformity to expectation

  • typical

    emphasises representing the characteristics of a group or category

  • ordinary

    suggests nothing special or remarkable; slightly more informal

Antonyms
  • abnormal

    direct opposite; deviating from what is typical or expected

  • unusual

    suggests something is not common without necessarily being negative

Grammar Patterns

it is normal for + noun + to-infinitive

normal + noun

Usage Note

Often used with modifiers like 'perfectly', 'completely', or 'entirely' to emphasise that there is nothing unusual about the situation.

Common Mistakes

That is a very normal weather for summer.
That weather is normal for summer.
Use 'be + normal for' instead of 'a normal' when describing conditions, not categories.

2. having a body or mind that is working correctly, without illness, injury, or pro

2.adjectiveB1
Definition

having a body or mind that is working correctly, without illness, injury, or problems that affect how someone or something should function.

Example

The doctor said Amani's heart rate is normal for someone her age.

pattern: normal for + possessive + age/group

After surgery, Vinícius was glad that all his test results were normal.

collocation: test results are normal

Common collocations
  • normal blood pressure
  • normal heart rate
  • normal range
  • normal results
  • normal development
  • within normal limits
  • return to normal
Synonyms
  • healthy

    broader term covering overall well-being; more positive than 'normal'

  • sound

    formal; emphasises undamaged or unimpaired condition

Antonyms
  • abnormal

    direct opposite; showing signs of illness or dysfunction

  • impaired

    describes function that has been damaged or weakened

Grammar Patterns

normal + noun (medical readings)

remain + normal

within normal limits

Usage Note

Common in medical contexts to describe test results, vital signs, and developmental progress. Frequently appears in the phrase 'within normal limits' (WNL) in clinical reports.

Common Mistakes

My health is normal.
My test results are normal.' or 'I am in good health.
'Normal' describes specific measures or functioning, not a general state of wellness.

3. in a condition where nothing is broken, damaged, or out of place, so that a thin

3.adjectiveB2
Definition

in a condition where nothing is broken, damaged, or out of place, so that a thing works or looks exactly as it should.

Example

The mechanic said the engine is in normal working order after the repair.

collocation: normal working order

Under the microscope, the cell structure looked normal with no signs of damage.

Common collocations
  • normal working order
  • normal condition
  • normal state
Synonyms
  • intact

    emphasises that nothing is missing or broken; more formal

  • unblemished

    focuses on the absence of visible marks or flaws

Antonyms
  • defective

    having a fault or flaw that prevents proper function

  • damaged

    physically harmed so that appearance or function is affected

Grammar Patterns

normal + noun (working order/condition)

4. meeting or forming an angle of exactly ninety degrees; standing at a right angle

4.adjectiveC1
Definition

meeting or forming an angle of exactly ninety degrees; standing at a right angle to a given line, surface, or plane.

Example

In geometry class, Soraya drew a normal line between the two intersecting planes.

mathematical term: normal line

A normal angle measures exactly ninety degrees and is also called a right angle.

Common collocations
  • normal line
  • normal angle
  • normal to
Synonyms
  • perpendicular

    far more common in everyday usage; interchangeable in technical contexts

  • orthogonal

    formal; used mainly in advanced mathematics and engineering

Antonyms
  • parallel

    running in the same direction without meeting; the opposite geometric relationship

Grammar Patterns

normal + noun (line/angle/plane)

Usage Note

Almost exclusively used in geometry, physics, and engineering contexts. In everyday English, 'perpendicular' or 'at a right angle' is far more common.

Idioms

Normal

idiom

a town located just north of Bloomington in central Illinois, United States, with a population of around 52,000 people.

Chidi drove through Normal on his way from Chicago to Springfield.

as per normal/usual

idiom

Happening in the same way that it always does.

Maya arrived late to class, as per usual.

As per normal, Diego finished his homework before dinner.

normal — noun

Word family

  • normally
    adverbA2
  • abnormal
    adjectiveB2
  • abnormally
    adverbC1
  • normality
    nounB2
  • normalise
    verbC1
  • normalisation
    nounC1
  • norm
    nounB2
  • abnormality
    nounC1

Synonym discussion

Sense: adjective/1

'Normal', 'usual', 'typical', 'ordinary', and 'regular' all describe things that match what people expect, but each has a different focus. 'Normal' is the broadest term — it describes what conforms to a standard or pattern without being remarkable, as in 'a normal school day starts at eight'. 'Usual' emphasises frequency and habit: something that happens most of the time ('the usual morning traffic'). 'Typical' highlights the representative qualities of a group ('a typical Taiwanese breakfast includes soy milk and egg pancakes'). 'Ordinary' suggests plainness or lack of special features ('an ordinary meal at a local diner'). 'Regular' focuses on consistent intervals or routines ('a regular customer visits the same shop every week'). In casual speech, these words often overlap, but 'regular' is best for repeated events, 'ordinary' for unremarkable things, 'typical' for group traits, and 'usual' for personal habits.

normal ↗usual ↗typical ↗ordinary ↗regular ↗

Common collocations

Nouns

Adverbs

Phrases

  • back to normal
  • return to normal
  • above normal
  • below normal
  • within normal limits

Prepositions

Etymology

LatinFrenchEnglish

The word 'normal' comes from the Latin word 'normalis', meaning 'made according to a carpenter's square' — something that is straight and true. The root 'norma' was a carpenter's tool for measuring right angles. From this concrete meaning of 'right-angled', the word gradually took on the broader sense of 'conforming to a standard or rule' in the 1600s. The medical sense of 'healthy, free from disorder' developed in the 1800s alongside the rise of modern medicine and statistics.