fluctuateto change irregularly between higher and lower levelsOil prices fluctuated between $60 and $90 per barrel throughout the year.NoteOil prices fluctuated between $60 and $90 per barrel throughout the year.Elon.io is an online learning platformWe have an entire course teaching IELTS Vocabulary — Band 7+ grammar and vocabulary.Start learning IELTS Vocabulary — Band 7+ now