Peter UK /ˈpiːtə/US /ˈpitɚ/noun 1phrases 1 noun1 •radiotelephony clear-code word for the letter P. Phrases with Peter rob Peter to pay PaulTo use resources that legitimately belong to or are needed by one party in order to satisfy a legitimate need of another party, especially within the same organization or group; to solve a problem in a way that makes another problem worse, producing no net gain.