Word.ws English Dictionary

knowing inside and out

knowing inside and out is the present participle and gerund 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 knowing inside and out

What is knowing inside and out the present participle and gerund of?
Knowing inside and out is the present participle and gerund of know inside and out.

Words near knowing inside and out in the dictionary

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

Source and license

Adapted from Wiktionary: knowing 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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