Word.ws English Dictionary

knows inside and out

knows inside and out is the third-person singular simple present indicative of know inside and out.

Meaning of know inside and out

Verb

know inside and out (third-person singular simple present knows inside and out, present participle knowing inside and out, simple past knew inside and out, past participle known inside and out)

  1. (idiomatic, transitive) To know (something or someone) very thoroughly.
    • He's still new to their system, but he knows databases inside and out and will understand the rest soon.

Questions about knows inside and out

What is knows inside and out the third-person singular simple present indicative of?
Knows inside and out is the third-person singular simple present indicative of know inside and out.

Words near knows inside and out in the dictionary

  1. knows full well
  2. knows how many beans make five
  3. knows how to pick 'em
  4. knows how to walk before one can run
  5. knows if one is Arthur or Martha
  6. knows inside and out
  7. knows like the back of one's hand
  8. knows no bounds
  9. knows of
  10. knows on what side one's bread is buttered
  11. knows one's arse from one's elbow

Source and license

Adapted from Wiktionary: knows inside and out (page history and authors); know inside and out (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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