atmosphere

The feeling or mood that a place, event, or group creates.

• The café has a friendly atmosphere.
• Music helped create a relaxed atmosphere.
• The atmosphere became tense when the manager arrived.

How to use it: atmosphere of something (An atmosphere of fear spread through the town.)

Similar words: mood, ambience

Common phrases: relaxed atmosphere, create an atmosphere, atmosphere of something

The layer of gases around a planet or another object in space.

• Earth has an atmosphere.
• The spacecraft entered the planet's atmosphere.
• Venus has a much thicker atmosphere than Earth.

Common phrases: earth’s atmosphere, planet’s atmosphere, upper atmosphere, thick atmosphere

The air in a particular place.

• Smoke filled the atmosphere.
• The factory's dusty atmosphere made breathing difficult.
• Open a window to improve the atmosphere in here.

Similar words: air

Common phrases: stuffy atmosphere, polluted atmosphere, humid atmosphere

A unit of pressure roughly equal to the pressure of air at sea level.

• The pressure was one atmosphere.
• They stored the gas at three atmospheres.
• One atmosphere equals 101,325 pascals.

Common phrases: one atmosphere, standard atmosphere