#1 block n. a solid piece of something (usually having flat rectangular sides); "the pyramids were built with large stone blocks". wn
#2 block v. [barricade, blockade, stop, block off, block up, bar] render unsuitable for passage; "block the way"; "barricade the streets"; "stop the busy road". wn
#3 block n. [city block] a rectangular area in a city surrounded by streets and usually containing several buildings; "he lives in the next block". wn
#4 block v. [obstruct, blockade, hinder, stymie, stymy, embarrass] hinder or prevent the progress or accomplishment of; "His brother blocked him at every turn". wn
#5 block v. [stop, halt, kibosh] stop from happening or developing; "Block his election"; "Halt the process". wn
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