Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun breach

3 senses of breach

Sense 1
breach -- (a failure to perform some promised act or obligation)
       => failure -- (an unexpected omission; "he resented my failure to return his call"; "the mechanic's failure to check the brakes")

Sense 2
breach -- (an opening (especially a gap in a dike or fortification))
       => opening, gap -- (an open or empty space in or between things; "there was a small opening between the trees"; "the explosion made a gap in the wall")

Sense 3
rupture, breach, break, severance, rift, falling out -- (a personal or social separation (as between opposing factions); "they hoped to avoid a break in relations")
       => separation, breakup, detachment -- (coming apart)

Synonyms/Hypernyms (Ordered by Estimated Frequency) of verb breach

2 senses of breach

Sense 1
transgress, offend, infract, violate, go against, breach, break -- (act in disregard of laws, rules, contracts, or promises; "offend all laws of humanity"; "violate the basic laws or human civilization"; "break a law"; "break a promise")
       => disrespect -- (show a lack of respect for)

Sense 2
gap, breach -- (make an opening or gap in)
       => open, open up -- (cause to open or to become open; "Mary opened the car door")