To split or to withdraw one or more constituent entities from membership of a political union, an alliance or an organisation
At the same time, Nolan also secretly contracted with the crafty United States Army general James Wilkinson to organize some men to secede Texas from Spanish America.
To withdraw from fellowship, communion, or association; to separate one's self by a solemn act; to draw off; to retire; especially, to withdraw from a political or religious body
If a region or group secedes from the country or larger group to which it belongs, it formally becomes a separate country or stops being a member of the larger group. Singapore seceded from the Federation of Malaysia and became an independent sovereign state On 20 August 1960 Senegal seceded. if a country or state secedes from another country, it officially stops being part of it and becomes independent secede from (secedere , from cedere )