IPA: /dɪˈpləʊməsi/
KK: /dɪˈploʊməsi/
The skill of managing relationships and negotiations between countries or people, often to avoid conflict and promote cooperation.
Effective diplomacy can help resolve international conflicts peacefully.
Diplomacy is formed from "diploma" (from Greek "diplōma", meaning a folded document or letter) and the suffix "-cy" (meaning the state or condition of). The word refers to the state or condition of managing relations and negotiations, often through formal documents.
Think of a 'folded document' ('diploma') that represents formal agreements and the 'state' ('-cy') of managing relationships — that's what diplomacy is all about.