Английский словарь американских идиом - break off

{v.} 1. To stop suddenly. * /The speaker was interrupted so often that he broke off and sat down./ * /When Bob came in, Jean broke off her talk with Linda and talked to Bob./ 2. {informal} To end a friendship or love. * /I hear that Tom and Alice have broken off./ * /She broke off with her best friend./