I am reading "Head First Design Patterns" book, chapter 2 ,entitled "Keeping your Objects in the know" but the title doesn't make sense to me.

what "Keep Something In The Know" means in this case and also in generally speaking?

  • Is this book about using programming languages, and referring to the Objects in a coding sense? – katatahito Jul 8 at 5:54
  • @katatahito Yes it is. Head First Design pattern, Chapter 2 – m.r226 Jul 8 at 7:03
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    Please edit your question and put the book title in. I suspect that the first paragraph of that chapter would also give us helpful context. – user22427 Jul 8 at 7:26

To "keep something/someone in the know" means to have information which is not accessible by everyone. So if you are reading a book about programming, then keeping your objects in the know would mean, that you probably should keep their information secret from the outside, but known to each other.


  • You should add a reference source to improve this answer – katatahito Jul 8 at 6:52
  • Your source does not support this interpretation. See my answer. – Colin Fine Jul 8 at 9:56

"Keeping someone in the know" is making sure that they have information which is not generally known. (That is what Collins dictionary, the source in Tymek's answer, says).

"Keeping something in the know" is completely meaningless to me, a native speaker. I believe it is either a mistake, or written by a non-native writer whose grasp of English idiom is not as good as they think it is.

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