IPA: //ədˈvaɪzər//
KK: /ədˈvaɪzər/
A person who gives advice or guidance to others.
She acted as an advisor to the new CEO during the transition period.
Advisor → It is formed from "ad-" (meaning to) and "visere" (meaning to see). The word describes someone who provides guidance or insight, essentially someone who helps you see the way forward.
Think of someone who helps you 'see' ('visere') the right path or decision — that's why an advisor is someone who gives advice.