tank
noun
tæŋk 
tæŋk 
1 a large container for holding liquid or gasa hot water tanka fuel tanka fish tank (= for keeping fish in) see also septic tank, think tank2 (also tankful tæŋkfʊl tæŋkfʊl 3 a military vehicle covered with strong metal and armed with guns. It can travel over very rough ground using wheels that move inside metal belts.4 (Indian English) an artificial pool, lake or reservoir