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7.amass; amass;accumulate; assemble
eg1:While Bakeland had been busily amassing dollars, some advances had been made in the development of plastics.During 1899 and 1900, it had seen the patenting of the first semi-synthetic thetmosetting material that could be manufactured on an industrual scale
eg2: Because geologists had been ecpecting the event, they were able to amass vast amounts of technical data when Mount st helens erupted.