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Definitions

twin

[twin] / twɪn /
ADJECTIVE
dual; matching; similar
Synonyms
STRONG
binary corresponding coupled double dual geminate like matched matching paired
WEAK
copied duplicate identical parallel same selfsame twofold very same
Antonyms
STRONG
different dissimilar mismatched separate single unequal unlike
WEAK
individual singular
NOUN
person or thing closely resembling another
Synonyms
STRONG
double duplicate fellow likeness look-alike match mate ringer
WEAK
companion coordinate counterpart reciprocal
NOUN
person identical to another
Synonyms
STRONGEST
Siamese twin fraternal twin identical twin
STRONG
clone doppelganger double

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Branch, 22, declared for the draft one year after transferring from USC along with his twin, Zion, who plays safety for Georgia.

From Los Angeles Times • Apr. 20, 2026

Evie’s twin sister, Vivi, died of leukemia last February.

From The Wall Street Journal • Apr. 18, 2026

This is an engrossing novel whose twin tales have emotional depth.

From The Wall Street Journal • Apr. 17, 2026

"Digital Richard" is the AI twin Richard Skellett has been building for the past three years.

From BBC • Apr. 16, 2026

Delia joined her twin to shake her legs out and kicked at Pita in the process.

From "Summer of the Mariposas" by Guadalupe García McCall