Build  —v. (past and past part. Built) 1 construct or cause to be constructed. 2 a (often foll. By up) establish or develop (built the business up). B (often foll. By on) base (hopes, theories, etc.). 3 (as built adj.) Of specified build (sturdily built). —n. 1 physical proportions (slim build). 2 style of construction; make.  build in incorporate. Build on add (an extension etc.). Build up 1 increase in size or strength. 2 praise; boost. 3 gradually become established. [old english]