definition of
breakdown

[1] #1 breakdown n. [dislocation] the act of disrupting an established order so it fails to continue; "the social dislocations resulting from government policies"; "his warning came after the breakdown of talks in London". wn

[2] #2 breakdown n. [crack-up] a mental or physical breakdown. wn

[3] #3 breakdown n. [equipment failure] a cessation of normal operation; "there was a power breakdown". wn

[4] #4 breakdown n. [partitioning] an analysis into mutually exclusive categories. wn