- (obsolete) early
- Very uncommon; scarce.
"Black pearls are very rare and therefore very valuable."
- (cooking, particularly meats) Cooked very lightly, so the meat is still red (in the case of steak or beef in the general sense).
- (of a gas) Thin; of low density.
- (US, transitive) To rear, bring up, raise.
- (US, intransitive) To rear, rise up, start backwards.