The words brute, bruit, brut sound the same but have different meanings and spellings. Why do brute, bruit, brut sound the same even though they are completely different words?
The answer is simple: brute, bruit, brut are homophones of the English language.
To spread news of; repeat.
Medicine An abnormal sound heard in auscultation.
Archaic A rumor.
Archaic A din; a clamor.
Very dry. Used of champagne.
An animal; a beast.
A brutal, crude, or insensitive person.
Of or relating to beasts; animal: "None of the brute creation requires more than food and shelter” ( Henry David Thoreau).
Characteristic of a brute, especially:
Definitions from The American Heritage® Dictionary of the English Language, 4th Edition and Wordnik.
Homophones (literally "same sound") are usually defined as words that share the same pronunciation, regardless of how they are spelled.