promote; popularize, okutumbula ku ddoboozi, to raise the voice, okutumbula ebbeeyi y'emmwanyi, to raise the price of coffee, ebintu ebisinga okutumbula ku busuubuzi. the things which are most conducive to promoting/developing trade.
tumbula (-tumbudde) v.i. & tr. swell; spread; disseminate; develop, promote; popularize, okutumbula ku ddoboozi, to raise the voice, okutumbula ebbeeyi y'emmwanyi, to raise the price of coffee, ebintu ebisinga okutumbula ku busuubuzi. the things which are most conducive to promoting/developing trade.