1. to administer or manage something jointly with another person or entity
Usage: formal; often used in legal, medical, or organizational contexts

Examples

• The two trustees agreed to coadminister the estate according to the will's provisions.
• Both physicians will coadminister the treatment plan for the patient.
• The organizations decided to coadminister the grant program to maximize its impact.
• The co-executors coadminister the deceased's assets and distribute them to beneficiaries.
• Federal and state agencies coadminister the healthcare initiative.