🧠 Mind & Thought

28 curated words, each with its own definition page

Words for the machinery of thinking itself — ideas about ideas, evidence about evidence.

idea notion insight memory attention perception imagination belief logic theory evidence conclusion assumption inference reasoning judgment awareness consciousness cognition understanding knowledge wisdom hypothesis analogy reflection deliberation contemplation thought

Browsing the rest of the shelf

💭 Feelings & Moods · 🌦️ Weather & Sky · 🏞️ Land & Sea · 💼 Work & Money · 🧺 Everyday Objects. Or jump to Word of the Day for one word a day, archived forever.

Where these words come from

Definitions load first from tukuk.org’s own word bank — about 207,000 English word-sense rows built weekly on free GitHub runners from Princeton WordNet (redistributed under its free-use notice with attribution) and frequency-ranked by wordfreq (CC-BY-SA 4.0), the same local index that answers the dictionary tool instantly. Anything the bank does not hold falls back to the free Free Dictionary API, cached a day like every other lookup.

The other collections

💭 Feelings & Moods

The words we reach for when something is happening inside — each one sharper than the last.

🌦️ Weather & Sky

Rain has eight names and the sky keeps supplying more. The vocabulary of looking up.

🏞️ Land & Sea

Words the geography of coasts, rivers and plains left in English — most of them are still places you can stand on.

💼 Work & Money

The ledger vocabulary — what the payslip, the invoice and the recession are actually called.

🧺 Everyday Objects

Household words that most of us never look up because we assumed we knew them. Some of us did not.