A person assigned to watch over someone or something, often in an official or supervisory capacity. Can be used for a chaperone, a monitor, or an inspector. The honorific お makes it polite.
An outside auditor attended the meeting as a watchdog.
She accompanied the young couple to the party as a chaperone.
Standard polite spelling with honorific お and kanji 目付け役.
Variant spelling using 付 instead of 付け; less common but still encountered.
Compound of honorific prefix お (o-) + 目付け (metsuke, 'observation' or 'watch') + 役 (yaku, 'role'). The term 目付け historically referred to inspectors or censors in the Edo period, and 役 indicates a designated duty.