1. Allowed (permitted) and aloud (in a loud voice)
2. Brake (a device used to slow or stop a vehicle) and break (to separate into pieces)
3. Forth (forward in position or time) and fourth (the number following three)
4. Pair (two of something) and pear (a fruit)
5. Mail (correspondence sent through the postal system) and male (the opposite gender of female)
6. Knight (a medieval warrior) and night (the time between sunset and sunrise)
7. Flower (a blossom) and flour (powder made from ground grains)
8. Right (correct or just) and write (to form letters or words on a surface)
9. See (to perceive with the eyes) and sea (a large body of saltwater)
10. Whether (expressing a doubt or choice between alternatives) and weather (the state of the atmosphere)