|an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle.|
|a fool or simpleton; ninny.|
|1.||speech or behaviour directed against the peace of a state|
|2.||an offence that tends to undermine the authority of a state|
|3.||an incitement to public disorder|
|[C14: from Latin sēditiō discord, from sēd- apart + itiō a going, from īre to go]|
Acts that incite rebellion or civil disorder against an established government.