"rarities" in the noun sense
1. rarity, rareness, infrequency
noteworthy scarcity
2. rarity, tenuity, low density
a rarified quality
"the tenuity of the upper atmosphere"
3. curio, curiosity, oddity, oddment, peculiarity, rarity
something unusual
Source: WordNet® (An amazing lexical database of English)
Princeton University "About WordNet®."
WordNet®. Princeton University. 2010.
View WordNet® License