1 breaking of a law/an agreement/a rule
ADJ. clear, fundamental, grave, serious | deliberate, flagrant He refused to bow to the Queen, in deliberate breach of etiquette. | minor | security
VERB + BREACH constitute Such behaviour constitutes a breach of confidentiality. | commit
PREP. in ~ of The court's decision is in breach of the European Convention on human rights. | ~ of a minor breach of discipline
PHRASES a breach of confidence/trust, a breach of confidentiality/contract He was sued for breach of contract. | a breach of security, a breach of the peace
2 break in friendly relations
VERB + BREACH cause, lead to | heal, repair
PREP. ~ between What caused the breach between the two brothers? | ~ with She left home following the breach with her family.