One of two or more people who share the legal responsibility of caring for and making decisions about a child or dependent person.
From 'co-' (together) combined with 'guardian,' a modern legal term describing shared parental or custodial responsibility.
In modern family law, 'coguardian' arrangements are becoming more common when unmarried couples split up or when grandparents share custody with parents, but courts still treat it as a shared legal burden.
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