1
biped
a creature with two feet
2
centipede
a creature with 100 feet
3
impediment
something that stands in one's way; an obstacle
4
millipede
a creature with 1,000 feet
5
pedal
a lever that is moved with one's foot
6
peddler
a person who goes from door to door on foot trying to sell a product
7
pedestrian
a person who walks across the street on foot
8
pedicure
a foot treatment that could include soaking the feet and polishing the toenails
9
quadruped
a four-footed creature
10
tripod
a three-footed stand often used to balance a camera