Word.ws English Dictionary

know inside out

know inside out is the alternative form 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.

Forms of know inside out

third-person singular presentknows inside out
present participleknowing inside out
pastknew inside out
past participleknown inside out

Questions about know inside out

What is know inside out the alternative form of?
Know inside out is the alternative form of know inside and out.

Words near know inside out in the dictionary

  1. know how many beans make five
  2. know how to pick 'em
  3. know how to walk before one can run
  4. know if one is Arthur or Martha
  5. know inside and out
  6. know inside out
  7. know like a book
  8. know like the back of one's hand
  9. know like the palm of one's hand
  10. know no bounds
  11. know of

Source and license

Adapted from Wiktionary: know inside 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.

Last updated:

Cite this entry: “know inside out.” Word.ws, https://word.ws/know_inside_out. Based on Wiktionary, CC BY-SA 4.0.