A more thorough explanation:

Definition: Treason felony is a type of offense in English law that involves an act showing an intention of committing treason, without any further act to carry out that intention. This offense usually results in life imprisonment rather than the death penalty. It is different from treasonable misdemeanor.

Example: If a person is found with plans to overthrow the government or harm the monarch, but has not taken any action to carry out those plans, they could be charged with treason felony.

Explanation: The example illustrates the definition of treason felony by showing that the offense involves an intention to commit treason, but not necessarily any action to carry out that intention. In this case, the person has plans to harm the monarch or overthrow the government, but has not yet taken any steps to do so. This intention alone is enough to be charged with treason felony.