IPA: /ˈtɛlɪˌmɑːrkɪtə/
KK: /ˈtɛlɪˌmɑrkɪtər/
A person who calls people on the phone to sell products or services, often without the recipient's prior request.
The telemarketer offered me a great deal on a new internet plan.
Telemarketer → It is formed from "tele-" (from Greek "tēle", meaning far off or at a distance) and "marketer" (from the word "market", which comes from Old French "marche", meaning a place where goods are bought and sold, combined with the agent suffix "-er", meaning a person who). A telemarketer is a person who markets products or services from a distance, typically over the phone.
Think of 'tele-' meaning 'far off' and 'marketer' as someone who sells in a 'market'. This helps you remember that a telemarketer is someone who sells products or services from a distance.