Definition from Wiktionary, the free dictionary
- (construction, archaeology) To dig or excavate a trench; to trench.
- (military) To surround or provide with a trench, especially for defense; to dig in.
- (figuratively) To establish a substantial position in business, politics, etc.
- Senator Cornpone was able to entrench by spending millions on each campaign.
- (dig): trench
- (surround with a trench): dig in
- (establish a solid, firm financial position): consolidate
surround with a trench