noun / verb
angle
ANG-guhl/ˈæŋɡl/
The direction or opening made where lines meet.
The two wooden slats form an angle where they meet at the pivot.

Etymology
Latin angulus meant a corner as well as an angle. The geometric meaning focuses on the opening or difference in direction where two lines or surfaces meet.
In context
So whenever you see this symbol, you know the angle you are looking at is a right angle, and that the lines that form it are perpendicular.
More examples
- She angles the lamp toward the page.
- The reporter considers the story from a different angle.
- The path crosses the field at a sharp angle.
Forms
angle · angles · angled · angling
angular adjective — Having or relating to sharply meeting lines.
Similar words
- slant
- Usually describes inclination rather than the opening between lines.
- perspective
- The figurative comparison for a particular way of viewing something.