Englishfor English speakers
indoor
Adjective
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An indoor event happens in a building, not outside.
The gym has an indoor swimming pool.
air
Noun
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Air is a mixture of gases. It has no color or odor (smell)
We breathe air to live.
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You put on airs when you act arrogantly.
The woman put on the airs in front of her friends.
air
Verb
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If you air something, you broadcast it, either over the radio, or on television.
Hurry! You'll miss the story about homeless children that is about to air on the local news!
ventilation
Noun
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Ventilation is the replacement of stale air with fresh air.
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Ventilation is the bodily process of breathing; the inhalation of air to provide oxygen, and the exhalation of spent air to remove carbon dioxide.