Subversion

1. n. The act of overturning, or the state of being overturned; entire overthrow; an overthrow from the foundation; utter ruin; destruction; as, the subversion of a government; the subversion of despotic power; the subversion of the constitution.

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.