1. The mixture of gases that surrounds the earth.
2. A piece of equipment shaped like a tube, containing LENSES, that you look through to make objects that are far away appear larger and nearer.
3. To restore something that broken, damaged or torn to good condition.
4. A mass of ice and dust that moves around the sun and look like a bright star with a tail.
5. The whole of space and everything in it, including the earth, the planets and the stars.
6. To be the first person to become aware that a particular place or thing exists.