[ˈrɛːrɪfʌɪd], (Adjective)

Definitions:
- (of air, especially that at high altitudes) of lower pressure than usual; thin
(e.g: every ounce carried counts triple when you're trudging uphill in rarefied air)

- distant from the lives and concerns of ordinary people; esoteric
(e.g: rarefied scholarly pursuits)


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