Main entry: similar, standardised, standardized, exchangeable, interchangeable
Definition: capable of replacing or changing places with something else; permitting mutual substitution without loss of function or suitability
Usage: interchangeable electric outlets interchangeable parts
Main entry: interchangeable
Definition: (mathematics, logic) such that the arguments or roles can be interchanged
Usage: the arguments of the symmetric relation, `is a sister of,' are interchangeable