sea fort

C1579
concept

A sea fort is a fortified structure built on or near the sea, typically on artificial islands, rocks, or coastal waters, designed to defend harbors, coastlines, or strategic maritime routes.

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All labels observed (15)

Label Occurrences
fort 176
coastal fortress 40
coastal fort 25

Description generation (CDg)

The one-sentence description above was generated by prompting gpt-5.1 with the class name and this instruction.

Instruction
generate a one-sentence description for a given conceptual class.
# Response Format
Return only the sentence: "Description: [one-sentence description of the conceptional class]"
Input
Class: sea fort
Generated description
A sea fort is a fortified structure built on or near the sea, typically on artificial islands, rocks, or coastal waters, designed to defend harbors, coastlines, or strategic maritime routes.

Instances (293)

Instance Via concept surface
New Tavern Fort fort
Jhansi
surface form: Jhansi Fort
fort
Fuerte de Guadalupe fort
Old Fort Jackson fort
Carabao Island (Cavite) fortified island
Fort Drum —
Forte Lorenese fort
Gagron Fort fort
Coalhouse Fort coastal artillery fort
Fort Batenstein coastal fort
Fort Victoria (Cape Coast) fort
Purandar fort
Fort William (Cape Coast) coastal fort
Amer Fort fort
Fort Crèvecœur fort
Fort San Sebastian coastal fort
St Mawes Castle coastal fortress
Chihkan Tower (Fort Provintia)
surface form: Chihkan Tower
fort
Fort McRee coastal fort
Sindhudurg Fort —
Fort St. Philip coastal fort
Sajjangad Fort fort
Munger
surface form: Munger Fort
fort
Kalyangad Fort fort
Fort Emmanuel fort
Ali Masjid Fort fort
Fort William, Kolkata fort
Shigar Fort fort
Jinji Fort fort
Loviisa
surface form: Svartholm Sea Fortress
sea fortress
Nagpur Fort fort
Malvan
surface form: Sindhudurg Fort
—
Ratnadurg Fort coastal fort
Fort Perch Rock coastal defence fort
Bhagwati Fort coastal fort
Jalore Fort fort
The Needles Battery coastal artillery fort
Nagaur Fort fort
Fort Niagara fort
Nagaur
surface form: Nagaur Fort
fort
Fort Matthew coastal fort
Fortezza Vecchia coastal fortress
Middle Ground fortified island
Oyster Rock fortified island
පෙදෙසේන කොටුව coastal fort
Arcot fort (ruins) fort
Drake’s Island (near mouth in Plymouth Sound)
surface form: Drake’s Island
fortified island
Fort of São Brás coastal fortress
Jodhpur
surface form: Mehrangarh Fort
fort
Fort San Jerónimo coastal fortress