Intrenchment

1. n. An encroachment or infringement.
2. n. The act of intrenching or the state of being intrenched.
3. n. Any defensive work consisting of at least a trench or ditch and a parapet made from the earth thrown up in making such a ditch.
4. n. Any defense or protection.

The word meanings were obtained from OPTED(The Online Plain Text English Dictionary), which is based on “The Project Gutenberg Etext of Webster’s Unabridged Dictionary” which is in turn based on the 1913 US Webster’s Unabridged Dictionary (See Project Gutenburg), as a text file.