Meaning & use

IQ

abbreviation·Academic

Last updated

UK/ˌaɪ ˈkjuː/
US/ˌaɪ ˈkjuː/

Meanings

  1. abbreviationcountable

    Short for intelligence quotient: a number from a standardized test that is meant to measure reasoning and problem-solving ability.

    Grammar: Read as two letters, I-Q. Used with a: an IQ of 100; average is set at 100.

    Patterns

    • an IQ of 120
    • have a high IQ
    • IQ test

    The test gave her an IQ of 130.

    An IQ score is not a measure of kindness or creativity.

    Researchers compared the IQ scores of children in two schools.

  2. abbreviationuncountableinformalhumorous

    Used informally for general cleverness or common sense.

    Grammar: Informal and often humorous: low IQ move.

    Patterns

    • a high-IQ move
    • low IQ

    Texting while crossing the road is a low-IQ move.

    It was a high-IQ decision to read the contract before signing.

    He may have book smarts, but his emotional IQ is low.

Word forms

pluralIQs

Common combinations

high IQ
A high IQ does not guarantee success.
IQ test
She took an IQ test as part of the school application.
IQ score
An IQ score may change slightly between tests.
average IQ
By design, the average IQ is set at 100.
emotional IQ
Good managers often have a high emotional IQ.

Synonyms and how they differ

intelligence
Intelligence is the general ability to learn and reason, whereas IQ is one score from one test.
brainpower
Brainpower is an informal word for mental ability, without the testing meaning of IQ.
smarts
Smarts is informal and covers practical cleverness, which an IQ test may not measure.

Word family

intelligence quotient noun
the full name that IQ stands for
EQ abbreviation
emotional quotient, a measure of emotional skill
intelligent adjective
able to learn and reason well
intelligence noun
the ability to learn and reason

Commonly confused: IQ or EQ? IQ or I.Q.?

IQ vs EQ

EQ refers to emotional intelligence, while IQ is about reasoning and problem-solving.

IQ vs I.Q.

I.Q. with full stops is an older spelling of the same abbreviation; IQ is now standard.

Practice

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