1. audi hear, listen

2. inaudible The talking amongst the audience made the speaker’s voice inaudible.

3. auditorium The awards presentation was held in the auditorium of the high school.

4. voc/voke voice, call

5. vocalize Owls often call at night, but they may also vocalize during the day. Dogs can’t vocalize how they feel.

6. revoke When the boy came home with a bad report card, his parents revoked his privileges. He was not allowed to watch TV or play video games for two weeks.

7. spec/spect watch, look at

8. spectator The spectators cheered loudly for the home team.

9. spectacle The Coliseum in ancient Rome provided violent spectacles of battles between men and animals. My friends told me I’d make a spectacle of myself if I danced with my grandmother, but I didn’t care.

10. terr land, ground, earth

11. terrarium I keep my pet snake in a terrarium.

12. territory The United States purchased the Louisiana territory from the French in 1803. Some animals aggressively defend their territory.

13. trac/tract pull, draw, drag

14. Retract: to pull something back The construction worker pushed a button so that the tape measure would retract. The sea otter can retract his claws !

15. Extract: to pull something out The boy yelled, “Ouch!” when the dentist extracted his tooth.