1. Week 22 Vocabulary Feb. 11-15, 2013

2. Aquanaut A skilled worker who is an underwater explorer

3. Astronaut A person trained to travel in a spacecraft;. Person who travels into outer space

4. Autograph a person's signature written by hand ; when someone signs their name on something

5. Eavesdrop Listen without the speaker's knowledge

6. Endanger To put in a dangerous situation; to threaten

7. Heliport a landing and takeoff place for a helicopter ; A place where helicopters land and take off

8. Monorail A railway having a single track.

9. Nylon A thin plastic kind of thread or fabric; a strong material use to make clothes

10. Octagon A shape with eight straight sides. An eight-sided polygon

11. Prehistoric Before written history, millions of years ago.

12. Suburb A place where people live located on the outer limits of a city; A neighborhood close to a city.

13. Telecast A television broadcast