adjudicate
🇺🇸
/əˈdʒuːdɪkeɪt/
🇬🇧
/əˈdʒuːdɪkeɪt/
to officially decide who is right in a disagreement
The committee will adjudicate on the issue.
to act as a judge in a competition or disagreement
A renowned musician will adjudicate at the contest.