HINGE

vt to bend.

2. hinge ·vt to attach by, or furnish with, hinges.

3. hinge ·noun one of the four cardinal points, east, west, north, or south.

4. hinge ·noun that on which anything turns or depends; a governing principle; a cardinal point or rule; as, this argument was the hinge on which the question turned.

5. hinge ·noun the hook with its eye, or the joint, on which a door, gate, lid, ·etc., turns or swings; a flexible piece, as a strip of leather, which serves as a joint to turn on.

6. hinge ·vi to stand, depend, hang, or turn, as on a hinge; to depend chiefly for a result or decision or for force and validity;

— usually with on or upon; as, the argument hinges on this point.