IPA: //vaɪsˈdʒɪərənt//
KK: /vaɪsˈdʒɪərənt/
A person who is given the authority to act on behalf of a ruler or leader, often in an administrative role.
The vicegerent managed the kingdom's affairs while the king was away.
Vicegerent → It is formed from "vice-" (meaning in place of) and "gerere" (meaning to carry or to bear). The word refers to someone who acts in place of another, particularly in a position of authority.
Think of someone who is 'carrying out' duties 'in place of' another — that's what a vicegerent does.
No commonly confused words.