| A | B |
| biped | creature with two feet |
| centipede | 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 |
| bi- | prefix that means two |
| cent- | prefix that means 100 |
| milli- | prefix that means 1,000 |
| peddler | a person who goes from door to door on foot selling stuff |
| pedestrian | a person who crosses the street on foot |
| -er | suffix that means someone who... |
| pedicure | a foot treatment that includes soaking the feet |
| quadruped | a four-footed creature |
| tripod | a three-footed stand often used to balance a camera |
| quad- | prefix that means four |
| tri- | prefix that means three |
| pedestal | a decorative stand for vases & sculptures |
| pedometer | a device that measure the distance covered on foot |
| podiatrist | a foot doctor |
| -meter | suffix that means measure |