encroachment

encroachment
n ~ (on/upon sth) (fml 文)
(a) [U] action of encroaching 侵入; 侵害; 侵占
    I resent the encroachment on my time. 我讨厌别人侵占我的时间.
(b) [C] thing gained by encroaching 侵占或侵害之物
    encroachments made by the sea upon the land 海水对陆地的侵蚀之处.

牛津英汉双解词典