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equator

noun

Simple meaning

An imaginary line around the Earth forming the great circle that is equidistant from the north and south poles.

Pronunciation

Say it like this:

ihkwayter

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IPA pronunciation (US)

ɪkˈweɪtɚ

This word is pronounced essentially the same in American and British English, so one transcription covers both.

IPA (International Phonetic Alphabet) is a standard way of writing speech sounds.

Word Review

Definition

Everyday modern meanings first, grouped by part of speech.

noun

  1. geographyoften "the Equator"

    An imaginary line around the Earth forming the great circle that is equidistant from the north and south poles

    “The equator is the boundary between the northern and southern hemispheres.”

  2. geographyoften "the Equator"

    An imaginary great circle around Earth, equidistant from the two poles, and dividing earth's surface into the northern and southern hemispheres.

  3. geographyoften "the Equator"

    A circle dividing a sphere or other surface into two usually equal and symmetrical parts

  4. astronomy

    A similar great circle on any sphere, especially on a celestial body, or on another reasonably symmetrical three-dimensional body.

  5. The midline of any generally spherical object, such as a fruit or vegetable, that has identifiable poles.

  6. The celestial equator.

Word at a Glance

Difficulty
C1 · Advanced
Frequency
Uncommon
Typical Use
Primarily written

Word Aura™

How this word commonly comes across.

Aura for this meaning

This meaning: An imaginary line around the Earth forming the great circle that is equidistant from the north and south poles

Used this way, equator is a common word that usually carries little praise or criticism of its own. It usually sounds natural in a wide range of settings.

Heard in a sentence
“The equator is the boundary between the northern and southern hemispheres.”
Emotional tone
Neutral
Formality
Neutral
Intensity
Moderate
How common
Common
Connotation
Matter-of-fact
Usage feel
Neutral and straightforward

Word Aura describes common impressions, not a measurement. Tone changes with sentence, speaker, relationship and situation.

More ways to use equator

  • “The equator is the boundary between the northern and southern hemispheres.”noun

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Common Patterns and Combinations

How this word naturally appears with others.

magnetic equatorthermal equatorsolar equatorheat equatorterrestrial equatorgeographical equatorlens equatordip equator

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Word Family

Related forms, grouped by how they connect.

Compound terms

Established multiword terms.

  • magnetic equatornounCompound term

    An imaginary line paralleling the equator where a magnetic needle has no dip.

  • celestial equatornounCompound term

    The great circle on the celestial sphere midway between the celestial poles.

Related words

Connected by subject or meaning, not by word formation.

  • equatorialadjectiveRelated term

    Of or relating to or at an equator.

  • equatorial currentnounRelated term

    Any of the ocean currents that flow westward at the equator.

  • north equatorial currentnounRelated term

    An equatorial current that flows west across the Pacific just north of the equator.

  • south equatorial currentnounRelated term

    An equatorial current that flows west across the Pacific just south of the equator.

Related Words

Connected to the same idea, not synonyms.

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Dictionary data from Wiktionary via the Free Dictionary API. Simple meanings, combinations and word intelligence are built from verified reference data, no AI is used to load this page.