| duple(adjective, spare, equal, double, identical) |
| dyadic(adjective, double, accompaniment) |
| image(noun, report, figure, piece, copy) |
| peer(noun, match, balance, equal, associate) |
| pendant(noun, like, copy, equal, similarity) |
| picture(noun, increase, fake, copy, match) |
| resemblance(noun, match, equal, similarity, complement) |
| rival(noun, match, balance, equal, double) |
| spitting image(noun, expression, idiom, reproduction, like) |
| mate |
| alter ego(noun, expression, idiom, match, double) |
| analogous(adjective, close, like, equal, parallel) |
| analogue(noun, reproduction, like, copy, match) |
| brother(noun, similarity, sibling) |
| carbon(noun, adjective, reproduction, like, fake) |
| carbon copy(noun, expression, reproduction, like, copy) |
| close(adjective, like, equal, near, parallel) |
| cognate(adjective, close, like, equal, parallel) |
| consistent(adjective, close, like, equal, near) |
| double-faced(adjective, double, duplication) |