bɪld

dɪˈvɛl.əp ˈfɔɹtɪfaɪ ˈfɔːtɪfaɪ pɹəˈɡɹɛs enlarge, develop, or increase by degrees or in stages build up your savings change the use of and make available or usable develop land The country developed its natural resources The remote areas of the country were gradually built up form or accumulate steadily Resistance to the manager's plan built up quickly Pressure is building up at the Indian-Pakistani border bolster or strengthen We worked up courage build up confidence ramp up security in the airports prepare oneself for a military confrontation The U.S. is girding for a conflict in the Middle East troops are building up on the Iraqi border