1. a love affair, especially a secret or illicit one
Usage: literary; somewhat formal

Examples

• The novel tells the story of a forbidden amour between two young lovers.
• She kept her amour secret from her family for months.
• The scandal involved a politician’s amour with a journalist.
• Their brief amour ended when he moved to another city.
• The memoir revealed details of the author’s youthful amour.
• Critics praised the film’s portrayal of a tragic amour.