In this Part of this Act, except where the context otherwise requires—
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"High Court maintenance order" "and family court maintenance order"and . . . mean respectively a maintenance order enforceable by the High Courtand the family court . . . ;
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"maintenance order" means any order, decision, settlement, arrangement or instrument specified in Schedule 8 to this Act and includes one which has been dischargedor has otherwise ceased to operate, if any arrears are recoverable thereunder;
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