(a.) Having the character of a synonym; expressing the same thing; conveying the same, or approximately the same, idea.

all one all the same analogous answering balanced coextensive coincident coincidental coinciding compeer complemental complementary congruent convertible coordinate correspondent corresponding coterminous counterpart ditto equal equilateral equiparant equipollent equivalent eurythmic even fellow finished harmonious homologous identical like match mate much the same opposite number parallel peer proportioned reciprocal reciprocative regular rival symmetric synonymous tantamount twin uniform well-balanced well-set well-set-up