asap
From Longman Dictionary of Contemporary Englishasapasap, ASAP /ˌeɪ es eɪ ˈpiː, ˈeɪsæp/ FAST/QUICKthe abbreviation of as soon as possibleFrom Longman Business Dictionaryasapasap /ˌeɪ es eɪˈpiː, ˈeɪsæp/ abbreviation for as soon as possiblePlease fill in your questionnaire and return it to us asap.