IPA: /ædˈmɒnɪʃər/
KK: /ædˈmɒnɪʃər/
A person who warns or advises someone about their behavior, often in a gentle or serious way.
The admonisher warned the students about the consequences of their actions.
Admonisher → It is formed from "ad-" (meaning to) and "monere" (meaning to warn or advise), along with the suffix "-er" (meaning a person who). The word "admonisher" refers to a person who gives warnings or advice to others.
Think of someone who is 'advising' ('monere') you 'to' ('ad-') be careful or to change your behavior — that's what an admonisher does.