1. to remove a bolt from; to unlock or unfasten by withdrawing a bolt

Examples

• She unbolted the heavy wooden door to let the visitors in.
• The maintenance worker unbolted the panel to access the wiring.
• He carefully unbolted the gate and walked into the garden.
• The security guard unbolted the emergency exit during the drill.
• They had to unbolt the old machinery before installing the new equipment.
• She unbolted the window shutters to let in the morning light.