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.
All labels observed (15)
| Label | Occurrences |
|---|---|
| fort | 176 |
| coastal fortress | 40 |
| coastal fort | 25 |
| sea fort canonical | 14 |
| coastal artillery fort | 13 |
| fortified island | 13 |
| Maunsell sea fort | 5 |
| sea fortress | 5 |
| coastal defence fort | 3 |
| maritime fortification | 2 |
| naval fortress | 1 |
| offshore fortification | 1 |
| pirate stronghold | 1 |
| seaside castle | 1 |
| tidal island fort | 1 |
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 |
|---|---|
| Fort Santiago de la Gloria | fort |
| Drake's Island | fortified island |
| Fort Charlotte | fort |
| Fort St. Catherine | coastal fortress |
| Gates Fort | fort |
|
Korlai
surface form:
Korlai Fort
|
coastal fort |
| Ershawan Fort | fort |
|
Peniche
surface form:
Peniche Fortress
|
coastal fortress |
| Fort Vijfhuizen | fort |
| Varignano Fortress | coastal fortress |
| Aligarh Fort | fort |
| Kondhana | fort |
| Fort d’Estrées | fort |
| Tour Royale fort | coastal fortress |
| Viapori | sea fortress |
| Barabati Fort | fort |
| Fort Caroline | fort |
| Fort Geldria | fort |
| Forte Filippo | coastal fortress |
|
La Rocca
surface form:
La Rocca (Porto Ercole)
|
coastal fortress |
| Hillsborough Fort | fort |
| Akhnur Fort | fort |
| Fort Gustavus | fort |
| Hulishan Fortress | coastal fortress |
| Fort de Brescou | coastal fortress |
| Fort Ross | fort |
| Bhujia Fort | fort |
| Fort Frederica National Monument | fort |
| Fort Nya Elfsborg | fort |
| Jagdishpur Fort | fort |
| Fort Nya Göteborg | fort |
| Niebla Fort | coastal fortress |
| Mancera Island Fort | coastal fortress |
| Mamula | fortified island |
| Datia Palace | fort |
|
Purana Qila in Delhi
surface form:
Purana Qila
|
fort |
| Fort Frederik Hendrik | fort |
|
Triangle of Fire
surface form:
Fort Worden
|
coastal artillery fort |
| Fort James at Accra | coastal fort |
| Fort Haldane | fort |
| Landguard Fort | coastal artillery fort |
|
Duquesne
surface form:
Fort Duquesne
|
fort |
| Fort Frederick | fort |
| Fort Independence | fort |
|
East Tilbury, Essex, England
surface form:
Coalhouse Fort
|
coastal fort |
| Fort National | coastal fortress |
| Fortín de San Gerónimo | fort |
| Fort Louis | fort |
| Fort Henry | fort |
|
Stack Rock
surface form:
Stack Rock Fort
|
coastal fort |