twin

Being two identical.

A duplicate copy.

(astrology) a person who is born while the sun is in Gemini.

A waterfall in the Snake River in southern Idaho.

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

Duplicate or match.

“The polished surface twinned his face and chest in reverse”

Bring two objects, ideas, or people together.

Give birth to twins.

Grow as twins.

“twin crystals”