| avifauna | (noun) the birds of a particular region or period | - |
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| buna | (noun) made by polymerizing butadiene | Synonyms: buna rubber |
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| fauna | (noun) a living organism characterized by voluntary movement | Synonyms: animal, animate being, beast, brute, creature |
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| (noun) all the animal life in a particular region or period | Synonyms: zoology |
| koruna | (noun) the basic unit of money in Czech Republic | - |
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| (noun) the basic unit of money in Slovakia | - |
| lacuna | (noun) a blank gap or missing part | Synonyms: blank |
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| laguna | (noun) a body of water cut off from a larger body by a reef of sand or coral | Synonyms: lagoon, lagune |
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| mucuna | (noun) any of several erect or climbing woody plants of the genus Mucuna; widespread in tropics of both hemispheres | - |
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| nuna | (noun) used by males to address an older female | Synonyms: noona |
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| sauna | (noun) a Finnish steam bath; steam is produced by pouring water over heated rocks | Synonyms: sweat room |
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| tuna | (noun) any very large marine food and game fish of the genus Thunnus; related to mackerel; chiefly of warm waters | Synonyms: tunny |
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| (noun) New Zealand eel | Synonyms: Anguilla sucklandii |
| (noun) important warm-water fatty fish of the genus Thunnus of the family Scombridae; usually served as steaks | Synonyms: tuna fish, tunny |
| (noun) tropical American prickly pear of Jamaica | Synonyms: Opuntia tuna |
| vicuna | (noun) small wild cud-chewing Andean animal similar to the guanaco but smaller; valued for its fleecy undercoat | Synonyms: Vicugna vicugna |
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| (noun) a soft wool fabric made from the fleece of the vicuna | - |
| (noun) the wool of the vicuna | - |