Why a Thesaurus Is a Storehouse, Not a Synonym Swapper

Note for the desk: this is a personal literary essay from Mark Dominus’s blog, not a security or technology story — there’s no meaningful cybersecurity, infra, or industry angle to it. Flagging in case it was queued by mistake.

The piece describes the seven books Dominus keeps within arm’s reach while writing. The centerpiece is his 4th-edition Harper & Row Roget’s Thesaurus, which he argues is widely misunderstood. Roget’s real design isn’t a word-swap tool for dressing up plain language; it’s a hierarchical map of concepts — a ‘storehouse’ — that classifies ideas so related ones sit near each other. Writing about time, for instance, walks you through priority, posteriority, simultaneity, earliness, and lateness, helping you sharpen what you actually mean rather than just sounding grander. His pointed caveat: the tool only works for someone who already knows what the words mean; a novice can only swap one wrong word for another, because effective tool use takes skill and training.

The rest is a digression on Sir Thomas Browne, the 17th-century English Baroque writer Dominus admires, whose ‘Pseudodoxia Epidemica’ catalogued and debunked popular 1646 beliefs. He contrasts what he sees as the cramped, fearful thinking of the medieval period with the bold, curious spirit of the early Renaissance. It’s a meditation on writing tools and intellectual inspiration, best suited to a books or culture column rather than a tech publication.