groynenoun [ C ]
also groin uk/ɡrɔɪn/us/ɡrɔɪn/a low wall built out from the coast into the sea, to prevent the repeated movement of the waves from removing parts of the land
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Coasts & beaches
- beached
- beachfront
- coast
- hinterland
- lido
- low-lying
- mudflat
- onshore
- promenade
- reef
- riviera
- rock pool
- sabkha
- sand
- seafront
- shallow
- the seashore
- the waterside
- tide pool
- waterfront
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Ditches, dams & tunnels