Synonyms and related words :
alienation, altercation, beef, bickering, breach, breach of friendship, break, cleavage, cleft, controversy, disaffection, disfavor, dispute, disruption, disunion, disunity, divergence, dividedness, division, estrangement, feud, hassle, open rupture, recall of ambassadors, rift, row, run-in, rupture, schism, separation, split