| heartbeat(noun, love, prize, steady, dear) | |
| heartthrob(noun, love, prize, steady, companion) | |
| idol(noun, love, prize, steady, dear) | |
| illustrious | |
| impair | |
| inamorato(noun, love, prize, steady, companion) | |
| incomparable(adjective, exceptional, exclusive, single, unique) | |
| individual(adjective, separate, exceptional, special, rare) | |
| infamous | |
| isolated(adjective, individual, single, solitary, singular) | |
| legendary | |
| light of my life(noun, expression, idiom, love, friend) | |
| love of my life(noun, expression, idiom, love, prize) | |
| monad | |
| no other | |
| none else | |
| nothing else | |
| nought beside | |
| number one(noun, expression, love, prize, steady) | |
| numero uno(noun, expression, love, prize, steady) |
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| APA | Smart Define. (2016). one and only thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/one_and_only/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "one and only thesaurus" https://smartdefine.org/one_and_only/thesaurus/synonyms (accessed September 26, 2026). |
| Harvard | Smart Define 2016, one and only thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/one_and_only/thesaurus/synonyms>. |
| MLA | Smart Define. "one and only thesaurus" 29 March 2016. Web. 26 September 2026. <https://smartdefine.org/one_and_only/thesaurus/synonyms> |