IPA: //ˈpɑːrtiˌɡoʊər//
KK: /ˈpɑrtiˌɡoʊər/
A person who goes to parties or social gatherings.
The lobby was filled with partygoers enjoying the festivities.
Partygoer → It is formed from "party" (from Old French *partie*, meaning a part or division) and "goer" (from the verb "go", meaning to move or travel). A partygoer is someone who goes to a party or event.
Think of someone who is 'going' ('goer') to a 'part' ('party') — that’s why a partygoer is someone who attends a party.