- In the case of reflection, this symmetry depends on whether a quarter wavelength fits an even or an odd number of times in the layer thickness.
- A quarter of the area is covered with virgin forest.
- Dan had a quarter but he went broke matching pennies with Fred.
- No more than a quarter of your income should go in rent.
- The flight was put off about a quarter, because of grind fog.
- He pays only a quarter of the normal fare because he work for the airline.