What is first-of-a-kind?

Answer 1

A first-of-a-kind is the first someone or something to do or be something.

Answer 2

"First-of-a-kind" refers to something that is the very first of its kind or category, often implying innovation or uniqueness. It could pertain to an original product, technology, concept, or idea that sets a new standard or introduces a novel approach that has not been seen before.