- Two angles whose sum is 90°.互余角：两个角的和等于90°
- Charles's Wain
- Charleston
- Charleston Peak
- Charlestons
- Charleston Southern University
- Charlestown
- Charles V
- Charles VII
- Charles X
- Charles XIV
- Charleville-Mézières
- charley horse
- charlock
- charlocks
- charlotte
- Charlotte
- Charlotte Amalie
- charlotte russe
- charlotte russes
- charlottes
- Charlottesville
- Charlottetown
- charm
- charm
- charmed