See discontinue in Webster's New World Roget's A-Z Thesaurus II
verb
To prevent the occurrence or continuation of a movement, action, or operation:
arrest, belay, cease, check, halt1, stall1, stay1, stop, surcease. Idioms: bring to a standstill, call a halt to, put a stop to. See continueTo stop suddenly, as a conversation, activity, or relationship:
break off, cease, interrupt, suspend, terminate. See continueTo come to a cessation:
arrest, belay, cease, check, halt1, leave off, quit, stall1, stop, surcease. Idiom: come to a halt (or standstill) (or stop). See continueTo cease trying to accomplish or continue:
abandon, break off, desist, give up, leave off, quit, relinquish, remit, stop. (Informal) swear off. (Slang) lay off. Idioms: call it a day, call it quits, hang up one's fiddle, have done with, throw in the towel. See continue
Learn more about discontinue