About Thesaurus.co

Thesaurus.co is a modern thesaurus and writing platform. The site is designed to help writers, students, marketers, and professionals find sharper words, stronger phrases, and clearer meanings.

What we do

We organize English lexical data around how people actually write — not by definition number but by intent. When you search for a word on Thesaurus.co, the page tells you which synonyms work in which contexts, which alternatives are formal, which are casual, and which carry the right tone for the audience you're writing for.

What makes Thesaurus.co different

• Premium one-word domain — Thesaurus.co reads as an authoritative reference.
• Practical writing tools — Synonym finder, antonym finder, resume word upgrader, tone word finder, plain-English rewriter, and power word finder.
• Long-form better-word essays — Hand-curated guides for the most overused words in English.
• Open data, properly attributed — Lexical data derived from Open English WordNet and editorial curation.
• No AI dependency — Every core feature works without external API keys.

For acquisition inquiries

Thesaurus.co is available for acquisition. See the acquisition page for platform details, monetization paths, and an offer form.