Fermi

5 lettersnoun

Updated June 2026

Definition

A unit of length equal to one femtometre, used in nuclear physics.

“The diameter of a proton is about one fermi.”

Pronunciation

Syllables

fer·mi

Related Words

Synonyms

femtometerfemtometre

Word Game Tips

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Wordle

"Fermi" uses 5 different letters, which makes it efficient for eliminating options. Its 2 vowels balance the consonants.

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Scrabble

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Words Related to Fermi

Words one letter different

Change a single letter of “fermi” to make these 5-letter words — useful for Wordle and crossword clues.

ferme ferri hermi

Words you can make from Fermi

Shorter words formed from the letters in “fermi”.

emir fire firm frim imer

Explore Similar Words

5-letter words starting with F 5-letter words ending with I All 5-letter words 4-letter words 6-letter words All word lists

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Dictionary References

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