vt.

1. 違反，違背（規則、法律等）
   His behavior transgressed the unwritten rules of social conduct.

   他的行為違反了不成文的社交規範。

2. 侵犯，越過（限度、範圍等）

vi.

1. 違法，犯罪
2. 越界

v.

1. go beyond the limits set by (a moral principle, standard, law, etc.).
2. Geology  (of the sea) spread over (an area of land).