does, dos, doughs, doze

The words does, dos, doughs, doze sound the same but have different meanings and spellings. Why do does, dos, doughs, doze sound the same even though they are completely different words?

The answer is simple: does, dos, doughs, doze are homophones of the English language.

does
  1. :: verb

    Third person singular present tense of do1.

dos
  1. :: noun

    Computer Science An operating system that resides on a disk.

doughs
  1. :: noun

    Plural form of dough.

doze
  1. :: verb-intransitive

    To sleep lightly and intermittently.

  2. :: verb-transitive

    To spend (time) dozing or as if dozing: dozed the summer away.

  3. :: noun

    A short, light sleep.

  4. :: phrasal-verb

    doze off To fall into a light sleep.

Definitions from The American Heritage® Dictionary of the English Language, 4th Edition, from Wiktionary, Creative Commons Attribution/Share-Alike License and Wordnik.

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About Homophones

Homophones (literally "same sound") are usually defined as words that share the same pronunciation, regardless of how they are spelled.

If they are spelled the same then they are also homographs (and homonyms); if they are spelled differently then they are also heterographs (literally "different writing").