twin brothers

Identical male pair

Twin brothers are brothers born from the same pregnancy, sharing a birth date and developing together in the womb.

The phrase emphasizes the sibling relationship between male twins: The twin brothers finished each other's sentences.

Identical twin brothers share all their DNA; fraternal twin brothers share about half, like any siblings.

Opposites
gender/sex

twin brotherstwin sisters

Female siblings born together

sisters

relatedness/familiarity

twin brotherscomplete strangers

strangers · acquaintances · distant relatives

birth timing/multiplicity

twin brothersonly child

Person without siblings

singleton · only son

Family

twin, brothers

Familiarity
Top 20,000
Profile
Known to kids · Used worldwide · Timeless · Concrete · Positive · Everyday, not technical · Rated G