IPA: /sɪˈdjuːsər/
KK: /sɪˈdjuːsər/
A person who attracts someone in a romantic or sexual way, often with the intention of leading them into a relationship or affair.
He was known as a charming seducer who could easily win over anyone's heart.
Seducer → It is formed from "seducere" (from Latin, meaning to lead astray) and "-er" (meaning a person who). A seducer is a person who leads someone astray, often in a romantic or enticing manner.
Think of someone who 'leads astray' ('seducere') — that's why a seducer is a person who entices or leads someone away from their better judgment.