v. (also intrench)
1. tr. establish firmly (in a defensible position, in office, etc.).
2 tr. surround (a post, army, town, etc.) with a trench as a fortification.
3 tr. apply extra safeguards to (rights etc. guaranteed by legislation).
4 intr. entrench oneself.
5 intr. (foll. by upon) encroach, trespass.
Phrases and idioms:
entrench oneself adopt a well-defended position.
Derivatives:
entrenchment n.