An example of interchangeable are the words dinner and supper.
Origin of interchangeableOld French entrechangeable
- in′ter·change′a·bil′i·ty, in′ter·change′a·ble·ness
- 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.