| coincident(adjective, like, equal, parallel, identical) | |
| Siamese | |
| Siamese twin(noun, expression, double, duplication, something) | |
| actual thing | |
| aforementioned(adjective, like, exact, equal, double) | |
| aforesaid(adjective, like, exact, equal, double) | |
| agnate(adjective, close, like, equal, parallel) | |
| agree | |
| all one | |
| allied(adjective, close, like, equal, parallel) | |
| ally | |
| allying(adjective, close, equal, near, parallel) | |
| ambidextrous | |
| analogon | |
| another(place, lower, inferior, additional, subsequent) | |
| approximating(adjective, close, equal, near, parallel) | |
| approximative(adjective, close, equal, near, parallel) | |
| art(noun, report, figure, piece, copy) | |
| as much again(expression, adjective, idiom, second, dual) | |
| assistant(noun, associate, double, supporter, companion) |
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| APA | Smart Define. (2015). twin thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/twin/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "twin thesaurus" https://smartdefine.org/twin/thesaurus/synonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2015, twin thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/twin/thesaurus/synonyms>. |
| MLA | Smart Define. "twin thesaurus" 23 December 2015. Web. 25 September 2026. <https://smartdefine.org/twin/thesaurus/synonyms> |