Phon
4 lettersnounrareUpdated June 2026
Definition
A unit of perceived loudness, defined by reference to a pure tone of one kilohertz at a given sound pressure level.
“The audiologist recorded the threshold at forty phons before adjusting the hearing aid settings.”
Word Game Tips
Wordle
Starts with PH, only vowel is O in position 3, ends in N
Scrabble
Worth 9 points with H, a technical term that is valid in Scrabble dictionaries
Words Related to Phon
Words one letter different
Change a single letter of “phon” 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 “phon”.
Explore Similar Words
Try These Tools
Dictionary References
Look up phon 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!