noun

sedition

sih-DISH-un/sɪˈdɪʃn/

Speech or conduct encouraging rebellion against lawful authority.

The speaker's call to overthrow the government is sedition.

Speaker openly urges rebellion using brief functional placard reading only OVERTHROW THE GOVERNMENT, emphatic raised hand toward distant generic government-column icon; educational depiction, no named group or tactical detail, white ground.

Etymology

Literally a “going apart,” the Latin compound came to mean civil dissension or rebellion. English extended that sense to speech or conduct that incites rebellion against government.

In context

Newsmax4:13

referred to it as sedition today i think that's exactly what it is this is treason this is way bigger this is a group of well polished professional people that are trying to overthrow the gun the the government

Truckers blow horn in defiance of Ottawa injunction, react to being called 'insurrectionists'

More examples

Criticizing a government policy does not by itself amount to sedition.
Prosecutors accuse the organizer of sedition for urging an armed uprising.
The court considers whether the speech encourages sedition or peaceful protest.

Forms

sedition

seditious adjective — Encouraging rebellion against lawful authority.

Similar words

incitement: Encourages harmful or unlawful action, not necessarily rebellion against government.
rebellion: Involves active resistance to authority rather than merely encouraging it.