definition of
block

[1] #1 block n. a solid piece of something (usually having flat rectangular sides); "the pyramids were built with large stone blocks". wn

[2] #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] #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] #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] #5 block v. [stop, halt, kibosh] stop from happening or developing; "Block his election"; "Halt the process". wn