| adjective | (mathematics, logic) such that the arguments or roles can be interchanged “the arguments of the symmetric relation, `is a sister of,' are interchangeable” |
| adjective | capable of replacing or changing places with something else; permitting mutual substitution without loss of function or suitability “interchangeable electric outlets” |
| interchangeableness | noun | the quality of being capable of exchange or interchange |
| interchangeability | noun | the quality of being capable of exchange or interchange |
| similarity | noun | the quality of being similar |