IPA: //ədˈvaɪzər//
KK: /ədˈvaɪzər/
A person who gives advice or guidance, especially in a professional or official capacity.
The adviser helped me choose the right courses for my degree.
Adviser → It is formed from "ad-" (meaning to) and "visere" (meaning to see). The word refers to 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 what an adviser does.