Is this your crossword clue?
"atmosphere" is also used as a crossword clue. If that's what you saw, the answer is often air (3 letters).
Definitions
a distinctive but intangible quality surrounding a person or thing
Word origin
Borrowed from French atmosphère, from New Latin atmosphaera, from Ancient Greek ἀτμός (atmós, “steam”) + σφαῖρα (sphaîra, “sphere”); corresponding to atmo- + -sphere.
Used in a sentence
“To most people, the huge ice sheets of Antarctica and Greenland are merely water that once was snow. To glaciologists and climatologists, they are storehouses of the Earth's former atmospheres.”
“The last hue of crimson had died away in the west, and the depth of the rich purple atmosphere was unbroken.”
“This year of 1905 also saw the completion of the electrification of the Underground, which certainly improved the atmosphere, and made travelling easier and more comfortable, although, at first, not too reliable.”
Source: Wiktionary, CC BY-SA 4.0
Used as a crossword answer3 curated clues
01“Air layer around Earth”10 letters
02“Air surrounding a planet”10 letters
03“Mood or surrounding air”10 letters
Not quite right?
"Search similar patterns."
A_________