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whistler (n.)someone who makes a loud high sound;
whistler (n.)large North American mountain marmot;
Synonyms: hoary marmot / whistling marmot / Marmota caligata
whistler (n.)large-headed swift-flying diving duck of Arctic regions;
Synonyms: goldeneye / Bucephela clangula
whistler (n.)Australian and southeastern Asian birds with a melodious whistling call;
Synonyms: thickhead
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