khaki UK /ˈkɑː.ki/US /ˈkæ.ki/noun 6adjective 1forms 4 noun6 •A dull, yellowish-brown colour, the colour of dust.But being the right shade of khaki or shit-brown is not enough. — 1980 •Khaki green, a dull green colour.The English Government for a long time has used a type of pigmented dope cover, khaki colored by iron pigments and lampblack, which is called P. C. 10. — 1921 •[in the plural] Khaki clothing or uniform.The porter in going through the rear coach, which was almost empty, noticed one of the occupants, a muscular, soldierly man in khakies to be apparently asleep in his seat. — 1915 •A strong cloth of wool or cotton, often used for military or other uniforms. •(slang, offensive) A British person."Frank, it's a khaki," I whisper, "keep straight on." — 1902 •(rare) A soldier wearing a khaki uniform. adjective1 •Dust-coloured; of the colour of dust. formskhakies · khakis · more khaki · most khaki