00More optionsShareSaveReportVideo vocabularyNo vocabulary matches your filtersbasisUS /ˈbesɪs/・UK /ˈbeɪsɪs/NounMain ingredient or part of somethingStarting situation, fact, idea to develop fromA2TOEICMore mmUS ・UK InterjectionSomething you say when you are satisfiedA1More Use EnergyUnlock All VocabularyUnlock pronunciation, explanations, and filtersUnlock