Ternion and Triptych

Ternion noun - The cardinal number that is the sum of one and one and one.

Triptych and ternion are semantically related in trio topic. In some cases you can use "Triptych" instead a noun "Ternion", when it comes to topics like three, three of something.

Triptych noun - Art consisting of a painting or carving (especially an altarpiece) on three panels (usually hinged together).

Ternion and triptych are semantically related in trio topic. You can use "Ternion" instead a noun "Triptych", if it concerns topics such as three, three of something.