10 Four Letter Words Ending in O

1. Afro, natural African hairstyle
2. Also, as well
3. Alto, loer than soprano but higher than bass
4. Biro, ball point pen
5. Brio, vigour or vivacity of performanc
6. Capo, item for changing tuning on a guitar
7. Dado, the lower part of the wall in a room
8. Echo, repeated sound caused by soundwaves hitting a hard surface
9. Halo, a circle of light
10. Judo, Japanese martial art