Meanings
present singular third person knows like a book · participle present knowing like a book · past knew like a book · participle past known like a book
- transitivesimileTo have an extensive and penetrating understanding of (something or someone).
"Around here I know the shoreline like a book."
2010, Bill Ratcliffe, Liz, →ISBN, page 243 more examples
"He's a bad man, that John Mason, and my advice to you and to every one, is to keep clear of him. I know him like a book."
1851, T. S. Arthur, “That John Mason”, in Off-Hand Sketches"Olson can hide out around here until the snow flies if he wants to. He knows these woods—every steam and lake—like a book."
1939 June 21, “Slayer Still Free in Woods”, in Leader Post, Saskatchewan, Canada, retrieved 18 Nov 2013, page 9"I played with the guy seven days a week; I knew him like a book."
1998 March 22, Dave Anderson, “College Basketball: When Sherman White Threw It All Away”, in New York Times, retrieved 18 Nov 2013Synonyms: know inside and out, know like the back of one's hand
Synonyms & antonyms
verbTo have an extensive and penetrating understanding of (something or someone).
Cite this entry
know like a book. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/know%20like%20a%20book
“know like a book.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/know%20like%20a%20book. Accessed November 5, 2026.
WatkinsX Dictionary, s.v. “know like a book,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/know%20like%20a%20book.
Source: know like a book on Wiktionary, CC BY-SA 4.0.