to stop being a group:
Disband
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To become separated, broken up, dissolved, or scattered;especially, to quit military service by breaking up organization.
Disband meaning & definition 1 of Disband.
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To break up an organization.
Disband meaning & definition 2 of Disband.
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(with reference to an organized group) break up or cause to break up.
Disband meaning & definition 3 of Disband.
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