1. 
   Thunnus
   Thunnus is a genus of ocean-dwelling fish in the family Scombridae, all of which are tuna, although other tuna species are found in other genera. The name of the genus is the Latinized form of the Greek θύννος, thýnnos, tuna, the word being first mentioned in Homer {Citation needed|date=Apri...
   Found op http://en.wikipedia.org/wiki/Thunnus
   
   
2. 
   Thunnus
   [n] - tunas: warm-blooded fishes
   Found op http://www.webdictionary.co.uk/definition.php?query=Thunnus
   
   
3. 
   Thunnus
   genus Thunnus noun tunas: warm-blooded fishes
   Found op http://wordnetweb.princeton.edu/perl/webwn?s=Thunnus
   
   
4. 
   thunnus
   1) Fish genus 2) Genus thunnus 3) Thunnus 4) Tunas
   Found op warm-blooded fishes
   
   

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