Yes, atmosphere is a Scrabble word!

Noun

1. A particular environment or surrounding influence

2. A unit of pressure: the pressure that will support a column of mercury 760 mm high at sea level and 0 degrees centigrade

3. The mass of air surrounding the Earth

4. The weather or climate at some place

5. The envelope of gases surrounding any celestial body

6. A distinctive but intangible quality surrounding a person or thing