1. a crescent-shaped or half-moon-shaped object or structure
2. a semicircular fortification or outwork
Usage: military architecture

Examples

• The architect designed a demilune window above the main entrance.
• The garden featured a demilune-shaped flower bed filled with roses.
• The fortress was protected by several demilunes extending from the main walls.
• She arranged the chairs in a demilune formation facing the stage.
• The demilune fortification provided additional defense for the castle’s eastern approach.
• The crescent-shaped demilune caught the morning light beautifully.