| A | B |
| biped | a creature with two feet |
| centipede | a creature with 100 feet |
| impediment | something that stands in one's way; an obstacle |
| millipede | a creature with 1,000 feet |
| pedal | a lever that is moved with one's foot |
| peddler | a person who goes door to door trying to see a product |
| pedestrian | a person who walks across the street |
| pedicure | a treatment for feet and nails |
| quadruped | a four-footed creature |
| tripod | a three-footed stand often used to balance a camera |