analogy, antipode, antithesis, bifurcation, cognate, commensurate, comparable, congruent, contrary, contrast, counterpart, current, dichotomy, differentiate, discrepancy, disparate, disparity, disproportionate, distinction, distinctive, divergent, duplicate, eclectic, equate, fewer, germane, heterodox, heterogeneous, homogeneous, incongruous, inverse, juxtapose, kindred, parallel, parity, polarity, quasi, reductive, relative, repartee, rubric, synonymous, tantamount, vis-à-vis