cursecursecursesnoun1a rude word that some people use when they are very angrysame meaningswear word2a word or phrase that has a magic power to make something bad happen: The family seemed to be under a curse (= lots of bad things happened to them).▶ curseverb (curse, cursing, cursed) to use rude language because you are angry: When he stood up, he hit his head and cursed loudly.