Nouns

(n)premium, insurance premiumpayment for insurance
(n)premiumthe amount that something in scarce supply is valued above its nominal value“they paid a premium for access to water”
(n)agio, agiotage, premium, exchange premiuma fee charged for exchanging currencies
(n)premiuma prize, bonus, or award given as an inducement to purchase products, enter competitions initiated by business interests, etc.“they encouraged customers with a premium for loyal patronage”
(n)bounty, premiumpayment or reward (especially from a government) for acts such as catching criminals or killing predatory animals or enlisting in the military

Adjectives

(s)premiumhaving or reflecting superior quality or value; having a higher price or cost“premium gasoline at a premium price”