Origin: Latin suffix -able
Interchangeable has 4 different meanings across 1 category:
Anything that can be interchanged; a substitute.
"The factory switched to interchangeable parts so they could quickly replace any broken gear without needing custom tools."
(mathematics, logic) such that the arguments or roles can be interchanged
"the arguments of the symmetric relation, `is a sister of,' are interchangeable"
capable of replacing or changing places with something else; permitting mutual substitution without loss of function or suitability
"interchangeable electric outlets"
"interchangeable parts"
Freely substitutable; that may be swapped at will.
"The two batteries in my camera are interchangeable, so I can swap them without any issue."