1. Noteworthy scarcity
   - rareness, infrequency 
2. A rarified quality
   - tenuity, low density 
3. Something unusual -- perhaps worthy of collecting
   - curio, curiosity, oddity, oddment, peculiarity

Derived forms: rarities

See also: rare

Type of: denseness, density, object, physical object, scarceness, scarcity

Encyclopedia: Rarity

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