Adjective

(-)

Freely substitutable. May be swapped at will.

Eli Whitney's development of interchangeable parts was a breakthrough for modern manufacturing. Prior to that each part had to be made custom.

* 2014 , Ian Jack, " Is this the end of Britishness", The Guardian , 16 September 2014:

The English, until relatively recently, seem to have imagined “English” and “British” to be interchangeable , as if Britain was just a bigger England.

Adjective

(en adjective)

Capable of easy interaction.

Able to get along well.

Consistent; congruous.

* {{quote-book, year=1922, author=(Ben Travers), title=(A Cuckoo in the Nest)

, chapter=1 citation , passage=She was like a Beardsley Salome , he had said. And indeed she had the narrow eyes and the high cheekbone of that creature, and as nearly the sinuosity as is compatible with human symmetry.}}