confess
kənˈfɛs
verb
admit that one has committed a crime or done something wrong.
he confessed that he had attacked the old man
admit,acknowledge,reveal,make known,disclose,divulge,make public,avow,declare,blurt out,profess,own up to,tell all about,bring into the open,bring to light,blow the lid off,discover,own up,admit guilt,plead guilty,accept blame/responsibility,be completely honest,tell the truth,tell all,make a clean breast of it,unbosom oneself,come clean,fess up,spill the beans,let the cat out of the bag,get something off one’s chest,let on,cough