Vocabulary ped = foot

A three-footed stand often used to balance a camera

• tripod
• pedicure
• pedal
• biped

A lever that is moved with one's foot

• peddler
• pedal
• pedicure
• pedestrian

A creature with two feet

• biped
• tripod
• quadruped
• pedal

A creature with 1,000 feet 

• centipede
• millipede
• biped
• peddler

A four-footed creature

• tipod
• biped
• quadruped
• pedestrian

A person who goes from door to door on foot trying to sell a product

• pedal
• pedestrian
• pedicure
• peddler

A creature with 100 feet

• millipede
• tripod
• biped
• centipede

A foot treatment that could include soaking the feet and polishing the toenails

• impediment
• pedicure
• peddler
• pedal

Something that stands in one's way; an obstacle

• tripod
• impediment
• pedestrian
• pedal

A person who walks across the street on foot

• peddler
• centipede
• pedestrian
• pedal