Difference between Rare and Rarefied

Rare

Part of speech: adjective

Definition: Very uncommon; scarce. Cooked very lightly, so the meat is still red (in the case of steak or beef in the general sense).

Part of speech: verb

Definition: To rear, rise up, start backwards. To rear, bring up, raise.

Example sentence: Good news is rare these days, and every glittering ounce of it should be cherished and hoarded and worshipped and fondled like a priceless diamond.

Rarefied

Part of speech: adjective

Definition: Esoteric.Less dense than usual.