1. present participle of hinge; attaching or fastening with a hinge or hinges
2. depending on or contingent upon something as a crucial factor

1. the action or process of attaching with a hinge or of turning on a hinge

Examples

• The carpenter is hinging the cabinet doors to the frame.
• The success of the project is hinging on whether we can secure funding by next month.
• The entire plan is hinging on his decision to participate.
• They are hinging the gate so it swings both ways.
• Everything is hinging on the outcome of tomorrow's meeting.
• The hinging mechanism on the old trunk was rusty and difficult to operate.