Definitions of break up:

• verb:   cause to separate

  Example: "Break up kidney stones"

• verb:   break or cause to break into pieces
• verb:   laugh unrestrainedly
• verb:   come apart
• verb:   come to an end
• verb:   bring the association of to an end or cause to break up
• verb:   release ice
• verb:   attack with or as if with a pickaxe of ice or rocky ground, for example
• verb:   set or keep apart
• verb:   break violently or noisily; smash;
• verb:   destroy the completeness of a set of related items
• verb:   separate (substances) into constituent elements or parts
• verb:   close at the end of a session
• verb:   cause to go into a solution
• verb:   make a break in
• verb:   take apart into its constituent pieces
• verb:   suffer a nervous breakdown
• verb:   to cause to separate and go in different directions
• verb:   discontinue an association or relation; go different ways