
1) Fish 2) It has a large fin 3) Saltwater fish
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https://www.crosswordclues.com/clue/sailfish

- a saltwater fish with lean flesh
- large pelagic game fish having an elongated upper jaw and long sail-like dorsal fin
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Sailfish are a genus Istiophorus of billfish living in warmer sections of all the oceans of the world. They are predominately blue to gray in colour and have a characteristic erectile dorsal fin known as a sail, which often stretches the entire length of the back. Another notable characteristic is the elongated bill, resembling that of the swordfi...
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http://en.wikipedia.org/wiki/Sailfish
[sailboat] The Sailfish sailboat is a small, hollow body, board-boat style sailing dinghy. The design is a shallow draft, sit-upon hull carrying a lateen sail mounted to an un-stayed mast. This style sailboat is sometimes referred to as a `wet boat` because, with its minimal freeboard, the sailor often gets splashed by spray as the boat mov...
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http://en.wikipedia.org/wiki/Sailfish_(sailboat)

• (n.) The basking, or liver, shark. • (n.) The banner fish, or spikefish (Histiophorus.) • (n.) The quillback.
Found on
http://thinkexist.com/dictionary/meaning/sailfish/

(genus Istiophorus), valued food and game fish of the family Istiophoridae (order Perciformes) found in warm and temperate waters around the world. ...
Found on
http://www.britannica.com/eb/a-z/s/7
Sail'fish noun (Zoology) (a) The banner fish, or spikefish (
Histiophorus .)
(b) The basking, or liver, shark.
(c) The quillback.
Found on
http://www.encyclo.co.uk/webster/S/6

All species of Istiophorus
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http://www.food.gov.uk/multimedia/webpage/namesoffish

The sailfish is a large tropical and sub-tropical marine fish of the family Istiophoridae distinguished by a long, high dorsal fin, long pelvic fins and a double keel on each side of the tail.
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http://www.probertencyclopaedia.com/browse/BS.HTM

The USS Sailfish was an American Sargo Class cruiser type submarine of 1450 tons displacement launched in 1938 as the Squalus, she foundered in 1939 and was salvaged and renamed Sailfish in 1940. the USS Sailfish was powered by diesel engines providing a top speed of 20 knots surfaced and carried a complement of 55. She was armed with one 3 inch an...
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http://www.probertencyclopaedia.com/browse/RS.HTM

[
n] - a saltwater fish with lean flesh 2. [n] - large pelagic game fish having an elongated upper jaw and long sail-like dorsal fin
Found on
http://www.webdictionary.co.uk/definition.php?query=sailfish
noun large pelagic game fish having an elongated upper jaw and long dorsal fin that resembles a sail
Found on
https://www.encyclo.co.uk/local/20974
No exact match found.