definition of
entrench

[1] #1 entrench v. [intrench] fix firmly or securely. wn

[2] #2 entrench v. [impinge, encroach, trench] impinge or infringe upon; "This impinges on my rights as an individual"; "This matter entrenches on other domains". wn

[3] #3 entrench v. [dig in] occupy a trench or secured area; "The troops dug in for the night". wn