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Umbo

4 lettersnounrare

Updated June 2026

Definition

A small, rounded protrusion at the point where the malleus attaches to the inner surface of the eardrum.

During the examination, the doctor located the umbo and confirmed the eardrum appeared healthy.

Related Words

Synonyms

bossknobprotuberance

Word Game Tips

🟩

Wordle

Ends in -MBO, a very uncommon Wordle ending, two vowels, a strong late-game guess if you suspect this pattern

🔤

Scrabble

Worth 8 points, B and M score moderately, UMBO is valid and hooks to UMBOS for a quick five-letter extension

Words Related to Umbo

Words one letter different

Change a single letter of “umbo” 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 “umbo”.

Longer words starting with Umbo

Words that begin with “umbo”.

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Dictionary References

Look up umbo in an authoritative dictionary for full definitions, pronunciation, and etymology.

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