Synonyms and related words :
all one, all the same, changeable, coequal, commutable, commutative, coordinate, correspondent, corresponding, equal, equalizing, equiparant, equipollent, equivalent, even, exchanged, give-and-take, identical, interchangeable, interchanged, liquid, modifiable, much the same, mutual, negotiable, permutable, reciprocal, reciprocating, reciprocative, resolvable, retaliatory, returnable, standard, swapped, switched, tantamount, traded, transformable, transitional, transmutable, transposed