1. [noun] A wing.
2. [noun] (ornithology) The joint of a bird's wing farthest from the body.
3. [noun] (ornithology) Any of the outermost primary feathers on a bird's wing.
4. [noun] A moth of the genus Lithophane.
5. [noun] (obsolete) A fetter for the arm.
6. [verb] (with the bird or the wing as the object) To cut off the pinion of a bird's wing, or otherwise disable or bind its wings, in order to prevent it from flying.
7. [verb] (with the person or the arms as the object) To bind the arms of any one, so as to deprive him of their use; to disable by so binding; to shackle.
8. [verb] In transferred senses or in figurative use
9. [verb] To bind fast to something, or together.
10. [noun] The smallest gear in a gear drive train.
11. [noun] A gear with a small number of teeth designed to mesh with a larger wheel or rack.
12. [noun] Any of the larger wing or tail feathers of a bird.
13. [noun] Wing of a bird.
14. [verb] Bind the arms of.
15. [verb] Cut the wings off (of birds).