Affricates
If you combine a brief stopping of the airstream with an obstructed release which causes some friction, you will be able to produce the sounds [tʃ] and [d_]. These are called affricates and occur at the beginning of the words cheap and jeep. In the first of these, there is a voiceless affricate [tʃ], and in the second, a voiced affricate [d_].