leanlean /liːn/ adjectiveadj1COMMERCEusing the most effective methods and the fewest employees possibleIn the struggle to turn the company into a lean commercial outfit, some lines have been discontinued altogether.
2MANUFACTURING lean manufacturing uses methods and techniques to produce goods as cheaply as possible, for example by using as few workers as possible and using JUST-IN-TIME methods, where parts are delivered only when they are neededAmerican companies are learning the tricks of lean manufacture.
3COMMERCEa lean period is a very difficult time because there is not enough money, business etca lean year for business
Many Welsh tourist attractions are having a very lean time.
—leanness noun [uncountableU]To achieve the necessary leanness, many more jobs will have to be lost in the defence industry across Europe.