twinform

noun
UK /ˈtwɪnfɔːm/
US /ˈtwɪnfɔːrm/

A twinform is a shape that looks exactly like another shape.

The two cookies were a twinform, matching in every curve and crumb.


OTHER MEANINGS

2. A second version of something that is identical to the first.

The artist made a twinform of her favorite sculpture.

3. A person or thing that closely resembles another.

The new puppy was a twinform of its mother.

4. In games, a matching piece that completes a pair.

She found the twinform of the blue card and won the round.