エアea

1. nounair

• Synonym大気たいきNeutralRefers to the layer of gases surrounding the earth, used in weather and environmental contexts like 「大気汚染」; 「エア」 mostly appears as a prefix in loan compounds.
• Synonym空気くうきNeutralThe everyday word for air, also used for the mood or atmosphere of a place; 「エア」 mostly shows up in loan compounds like 「エアコン」 and 「エアメール」.

For everyday air say 「空気」; for the atmosphere around the earth use 「大気」. 「エア」 itself mostly appears as a prefix in loan compounds like 「エアコン」, or means pretend, as in 「エアギター」.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

1. 空気くうき、大気たいき。
2. 空気くうきの、航空こうくうの、放送ほうそうの、ふりだけの。