trespass

Universal Words verb, noun verb [V] 1 ~ (on sth) to enter land or a building that you do not have permission or the right to enter: He told me I was trespassing on private land. * The sign on the fence said 'No trespassing'. 2 (old use) to do sth wrong PHRASALVERBS trespass on sth (formal) to make unfair use of sb's time, help, etc: I mustn't trespass on your time any longer. noun 1 [U,C] an act of trespassing on land 2 [C] (old use) something that you do that is morally wrong SYNSIN