Noun

1. A jointed or flexible device that allows the pivoting of a door etc. See also pintel.
2. A stamp hinge, a folded and gummed paper rectangle for affixing postage stamps in an album.
3. A point in time, on which subsequent events depend.
4. The median of the upper or lower half of a batch, sample, or probability distribution.

Verb

1. To attach by, or equip with a hinge.
2. To depend on something.
3. archaeology The breaking off of the distal end of a knapped stone flake whose presumed course across the face of the stone core was truncated prematurely, leaving not a feathered distal end but instead the scar of a nearly perpendicular break.

   The flake hinged at an inclusion in the core.