| picture(noun, form, reproduction, study, agreement) |
| pleat(noun, verb, order, smooth, expand) |
| reproduction(noun, adjective, form, study, place) |
| stand in(verb, phrasal verb, activity, person) |
| surrogate(noun, substitute, replacement, alternative, alternate) |
| bivalent |
| companion(noun, adjective, reproduction, copy, match) |
| coupled(adjective, like, identical, pair, twin) |
| double over(verb, expression, phrasal verb, bend, crease) |
| doubling(noun, fold) |
| dualistic(adjective, pair, accompaniment, burlesqued, dual) |
| magnify(verb, advance, increase, raise, rise) |
| multiply(verb, advance, increase, raise, rise) |
| parallel(noun, feature, reproduction, close, like) |
| replacement(noun, adjective, reproduction, copy, spare) |
| stunt man(noun, expression, idiom, person) |
| two-bagger |
| alternative(noun, place, lower, inferior, substitute) |
| augment(verb, advance, increase, raise, rise) |
| backup(noun, adjective, reserve, substitute, replacement) |