1. past tense and past participle of fasten; secured or attached firmly in place

Examples

• She fastened her seatbelt before starting the car.
• The gate was fastened with a heavy chain and padlock.
• He fastened the buttons on his coat against the cold wind.
• The carpenter fastened the boards together with screws.
• The tent was securely fastened to the ground with stakes.
• She fastened her hair back with a clip.
• The lid was tightly fastened to prevent spills.