the tip of the iceberga small visible part of a much larger problem or situationThe reported cases are just the tip of the iceberg when it comes to cybercrime.NoteThe reported cases are just the tip of the iceberg when it comes to cybercrime.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