In the Arabic alphabet, dhaal represents a voiced dental fricative, the sound made with the tongue lightly against the upper teeth while the voice is engaged. It is distinct from the voiceless th in words like think, and it appears in common Arabic words and names. Because many learners do not have this sound in their first language, short isolated pronunciation clips have become a staple of online Arabic lessons, apps, and classroom materials, where hearing one letter at a time helps learners build accurate pronunciation before moving on to full words and sentences.