The dental fricative or interdental fricative is a fricative consonant pronounced with the tip of the tongue against the teeth. There are several types (those used in English being written as th): * Voiced dental fricative [ð] - as in the English this, [ðɪs]. * Voiceless dental fricative [θ] - as in the English thin, [θɪn]. * Dental ejective fricative [θʼ]