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twin

noun · verb · adjective

Simple meaning

Either of two offspring born at the same time from the same pregnancy.

Pronunciation

Say it like this:

twin
US device voice
IPA pronunciation (US)

ˈtwɪn

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. Either of two offspring born at the same time from the same pregnancy

  2. Either of two people (or, less commonly, animals) who shared the same uterus at the same time; one who was born at the same birth as a sibling.

  3. Either of two similar or closely related objects, entities etc.

  4. A room in a hotel, guesthouse, etc. with two beds; a twin room.

  5. us

    A twin size mattress; or a bed designed for such a mattress.

verb

  1. intransitive

    To be, or be like, a pair of twins (for example, to dress identically); to be paired or suited.

  2. usually in the passive

    To join, unite; to form links between (now especially of two places in different countries); to pair with.

  3. transitive

    To be, or be like, a twin to (someone else); to match in some way.

  4. Grow as twins

  5. intransitive

    To give birth to twins.

adjective

  1. Double; dual; occurring as a matching pair.

  2. Forming a pair of twins.

Word at a Glance

Difficulty
B1 · Intermediate
Frequency
Common
Typical Use
Everyday English

Word Aura™

How this word commonly comes across.

Aura for this meaning

This meaning: Either of two offspring born at the same time from the same pregnancy

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

Emotional tone
Neutral
Formality
Neutral
Intensity
Not strongly marked
How common
Moderately common
Connotation
Matter-of-fact
Usage feel
Neutral and straightforward

Nearby words

  • twin falls , rarer, so it draws attention

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

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Common Patterns and Combinations

How this word naturally appears with others.

Either

twin brothertwin sister

Other combinations

identical twintwin studytwin citytwin fallstwin pairstwo twin

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Word Family

Related forms, grouped by how they connect.

Inflected forms

Grammatical variations of the same word.

  • twinsnounPlural form

    Two interwoven crystals that are mirror images on each other.

Compound terms

Established multiword terms.

  • twin-propeller-planenounCompound term

    A propeller plane with an engine that drives two propellers in opposite directions (for stability).

  • twin towersnounCompound term

    Twin skyscrapers 110 stories high in New York City.

  • twin bednounCompound term

    One of a pair of identical beds.

  • twin-aisle airplanenounCompound term

    A commercial airliner with two aisles.

  • twin billnounCompound term

    Two games instead of one (especially in baseball when the same two teams play two games on the same day).

  • twin citiesnounCompound term

    Nickname for Saint Paul and Minneapolis.

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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.