privilege

(noun) a special advantage or immunity or benefit not enjoyed by all.

(noun) a right reserved exclusively by a particular person or group (especially a hereditary or official right). Synonyms: prerogative, perquisite, exclusive right. Example: "Suffrage was the prerogative of white adult males."

(noun) (law) the right to refuse to divulge information obtained in a confidential relationship.

(verb) bestow a privilege upon. Synonyms: favor, favour.