Air
Atmosphere
noun
The sky energy... once known of as a mystical thing that kept us from flying into space. Now we know this is the air. It can also mean atmosphere, though, because that's what a bunch of air between the earth and space is called. ここの空気はいいね！
くうき
This is a jukugo word, which usually means on'yomi readings from the kanji. If you know the readings of your kanji you'll know how to read this as well.
ちょっとは空気をよんでください。
Please just take the hint.
冬のあさの空気はつめたい。
The morning winter air is cold.
海賊の宇宙船に乗っている猿は、三時間後に大気圏に突入する予定だ。猿は、肺に好きなだけ空気を吸い込むことが待ちきれない。
The monkey in the pirate’s space ship will be reentering the atmosphere in 3 hours. He can’t wait to draw as much air into his lungs as possible.