diluteto make a solution weaker by adding a solvent such as waterThe researcher had to dilute the concentrated acid before it could be safely used in the experiment.NoteThe researcher had to dilute the concentrated acid before it could be safely used in the experiment.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