Root Meanings
Prefix Power
Definition Match
Sounds & Light
On Your Feet
100

This root means “to hear.”

What is aud/audi

100

Prefix in irregular meaning “not.”

What is ir-?

100

A shiny, black substance used in pencils

What is graphite?

100

Heard or able to be heard.

What is audible?

100

A person walking in a city or along a road.

What is a pedestrian?

200

This root means “write/draw.”

What is graph?

200

Prefix in illegal meaning “not.”

What is il-?

200

A paper copy of a document made with a special machine.

What is photocopy?

200

A picture made by a camera

What is a photograph?

200

A device that measures steps or walking distance.

What is a pedometer?

300

This root means “light.”

What is photo?

300

Prefix in antiseptic meaning “against/opposite.”

What is anti-?

300

A person, bank, or company that lends money.

What is a creditor?

300

A lens that makes faraway objects appear closer.

What is a telephoto lens?

300

A treatment to improve the appearance and health of the feet and toenails.

What is a pedicure?

400

This root means “believe/trust.”

What is cred?

400

Prefix in counteract meaning “against/in opposition.”

What is counter?

400

A doctor who treats injuries and diseases of the foot.

What is podiatrist?

400

A tiny particle of light.

What is a photon?

400

A support for a camera that has three legs.

What is a tripod?

500

These roots mean “foot.”

What is ped/pod?

500

Prefix in deprive signaling “down/away/reverse.”

What is de-?

500

A strong feeling of dislike.

What is antipathy?

500

A large room where people gather to hear a speech or watch a performance.

What is an auditorium?

500

Something made to look like an exact copy to trick people.

What is counterfeit?

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