stirrup

Short definition from Wiktionary

Noun

1. 1
   A ring or hoop suspended by a rope or strap from the saddle, for a horseman's foot while mounting or riding.
2. 2
   Any piece shaped like the stirrup of a saddle, used as a support, clamp, etc.
3. 3
   Any piece shaped like the stirrup of a saddle, used as a support, clamp, etc: A portable, flexible ladder-like device used in climbing.
4. 4
   A stapes.
5. 5
   A rope secured to a yard, with a thimble in its lower end for supporting a footrope.
6. 6
   A bent rebar wrapped around the main rebars to reinforce against shear stress.

Adjective

1. 1
   Referring to women's pants/trousers: being of a form, commonly worn by women, that includes a strap beneath the arch of the foot.

Proper noun

1. 1
   A surname.