Definitions

1. 1.to sharpen, to whet (to make sharp)
2. 2.to sharpen (to make the shapes or outlines of something more clearly defined, e.g. facial features)
3. 3.to sharpen up (to make the outlines in a photo or picture clear and well cut from the background by using appropriate tools or techniques)
4. 4.to sensitize (to cause someone to react strongly to sensory stimuli)
5. 5.to sharpen up (to make a phenomenon or problem more pronounced)
6. 6.to haul (to steer closer to the wind)
7. 7.to sharpen up (to get more clearly outlined)
8. 8.to sharpen up (to gain clearer contours, well separated from the background)
9. 9.to get sensitized (to start reacting strongly to sensory stimuli)
10. 10.to sharpen up (to become a more pronounced phenomenon or problem)