What is the meaning of Subversion?

The act of subverting; overturning; flipping from beneath.

The act of overthrowing a government or a ruler; dethronement.

The condition of being subverted.

A systematic attempt to overthrow a government by working from within; undermining.

A revision considered more similar to preceding subversions than a revision deemed a new "version" is to preceding versions.

subversion

subversion (overthrowing)

subversion

Source: wiktionary.org