to or at a greater extent or degree or a more advanced stage (`further' is used more often than `farther' in this abstract sense); "further complicated by uncertainty about the future"; "let's not discuss it further"; "nothing could be further from the truth"; "they are further along in their research than we expected"; "the application of the law was extended farther"; "he is going no farther in his studies"
to or at a greater distance in time or space (`farther' is used more frequently than `further' in this physical sense); "farther north"; "moved farther away"; "farther down the corridor"; "the practice may go back still farther to the Druids"; "went only three miles further"; "further in the future"
more distant in especially degree; "nothing could be further from the truth"; "further from our expectations"; "farther from the truth"; "farther from our expectations"