mot juste
From Longman Dictionary of Contemporary Englishmot justemot juste /ˌməʊ ˈʒuːst $ ˌmoʊ-/ noun (plural mots justes (same pronunciation)) [countable] formal → the/le mot justeExamples from the Corpusmot juste• Hence Channel One, a commercial satellite network serving, if that is the mot juste, 12,000 schools.Origin mot juste (1900-2000) French “exact word”