| Word | Definitions | Synonyms |
|---|---|---|
| rariora | (noun) (plural) rare collector's items | - |
| rarity | (noun) something unusual -- perhaps worthy of collecting | Synonyms: curio, curiosity, oddity, oddment, peculiarity |
| (noun) a rarified quality | Synonyms: low density, tenuity | |
| (noun) noteworthy scarcity | Synonyms: infrequency, rareness |