a sweetheart chosen to receive a greeting on Saint Valentine's Day

A sentimental or humorous greeting card sent to a sweetheart, friend, or family member, for example, on Saint Valentine's Day, A letter or missive sent by one person to another of the opposite sex on St. Valentine's day; a written or printed or painted missive of an amatory or a satirical kind, generally sent anonymously, A person to whom a valentine is given or received, especially on February 14th