Guilty by Definition cover

Guilty by Definition

The Clarendon Lexicographers • Book 1

by Susie Dent

3.91 Goodreads
(12.0K ratings)

Why You'll Love This

A lexicographer starts decoding anonymous letters at a dictionary — and the hidden language points straight back to her sister's disappearance.

  • Great if you want: a literary mystery where words themselves become clues
  • The experience: atmospheric and measured — Oxford-drenched, quietly unsettling
  • The writing: Dent weaves etymology into the prose without slowing it down
  • Skip if: you prefer fast, plot-driven thrillers over character-led mysteries

About This Book

Words have always had the power to reveal what people most want to conceal — and in Guilty by Definition, that idea becomes the engine of something quietly gripping. Martha Thornhill returns to Oxford carrying a decade of carefully managed distance from her past, only to find that the past has been patiently waiting. When cryptic letters begin arriving at the Clarendon English Dictionary, where Martha has just taken a senior editorial post, the coded language inside them points unmistakably toward the summer her sister Charlie vanished. The premise is elegant in its irony: a woman who has spent her career pinning down the precise meanings of words must now decode what someone is desperately trying to hide between them.

What distinguishes this novel as a reading experience is the way Susie Dent — best known as a lexicographer herself — makes language feel genuinely dangerous. The etymological puzzle-solving never reads as a clever gimmick; it's woven into the emotional fabric of the story, so that every word examined carries weight beyond its definition. The Oxford setting is rendered with specificity rather than postcard atmosphere, and the pacing trusts readers to sit with ambiguity before answers arrive. It's the kind of book that makes you read more carefully than usual.