🏞️ Land & Sea

30 curated words, each with its own definition page

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

coast shore cliff canyon delta estuary fjord glacier island lagoon mesa mountain oasis peninsula plateau reef ridge river savanna steppe strait swamp tundra valley volcano waterfall wetland dune cave prairie

Browsing the rest of the shelf

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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.