how to silence a squeaky door

To silence a squeaky door, tighten any loose hinge screws and apply a high-quality lubricant to the hinge pins.

Tighten Loose Screws. Check all hinge screws on both the door and frame. Tighten any that are loose. If a screw hole is stripped, fill it with wood glue and wooden toothpicks or matchsticks before reinserting the screw.
Clean the Hinge Pins. Remove the hinge pin by tapping it upward with a hammer and nail. Clean off old grease, dirt, and debris using a cloth or steel wool. Work on only one hinge at a time to keep the door supported.
Lubricate Properly. Apply a small amount of white lithium grease, petroleum jelly, or light machine oil to the pin. Avoid using too much, as excess lubricant attracts dust and can drip onto the floor. WD-40 is effective for cleaning but is generally considered a temporary lubricant.
Reassemble and Test. Reinsert the pin and tap it gently into place. Open and close the door several times to distribute the lubricant evenly throughout the hinge mechanism. Wipe away any excess product.