Atmo
4 lettersprefixrareUpdated June 2026
Definition
A combining form relating to vapour or atmosphere, used in scientific terms.
“The atmo- prefix appears in words like atmosphere.”
Word Game Tips
🟩
Wordle
M with common letters — decent guess.
🔤
Scrabble
Worth 6 points. M adds value.
Words Related to Atmo
Words one letter different
Change a single letter of “atmo” to make these 4-letter words — useful for Wordle and crossword clues.
Add a letter to make a longer word
5-letter words you can spell by adding one letter to “atmo”.
Explore Similar Words
Try These Tools
Dictionary References
Look up atmo in an authoritative dictionary for full definitions, pronunciation, and etymology.

Ready to test your word skills?
Download Word Challenge for unlimited word puzzles, a fresh Daily Challenge, and head-to-head multiplayer. Guess the hidden word in six tries or fewer!