#1 interchangeable s. (mathematics, logic) such that the arguments or roles can be interchanged; "the arguments of the symmetric relation, 'is a sister of. wn
#2 interchangeable s. [exchangeable, similar, standardized, standardised] capable of replacing or changing places with something else; permitting mutual substitution without loss of function or suitability; "interchangeable electric outlets" "interchangeable parts". wn
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