o·ver·lap/ˏovə`læp; ˌəʊvəˈlæp/ v [I,T] -pped, -pping 1 if two things overlap, part of one thing covers part of the other 〔两物〕部分互叠，叠盖: a pattern of overlapping circles 圆形交叠的图案 2 if two subjects, activities, ideas etc overlap, they are similar in some ways, but not in others 〔两个主题、活动、观念等〕部分相同: The case I'm working on overlaps with yours. 我正在处理的案件和你那宗有部分相同之处。