taigaPronunciation: /ˈtʌɪgə/Definition of taiga noun [mass noun] (often the taiga) the swampy coniferous forest of high northern latitudes, especially that between the tundra and steppes of Siberia: the coniferous forest of the taigaOrigin: late 19th century: from Russian taĭga, from Mongoliantaiga in other Oxford dictionaries Definition of taiga in the US English dictionary