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Clicks are stops articulated with two closures in the oral cavity. The pocket of air enclosed between these two closures is rarefied by a sucking action of the tongue. (That is, they have a velaric/lingual ingressive airstream mechanism.) The release of the forward closure produces what may be the loudest consonants in the language, although in some languages such as Hadza, clicks can be more subtle and may even be mistaken for ejective stops. Clicks appear more stop-like or more affricate-like depending on their place of articulation: Generally clicks involving an apical alveolar or laminal postalveolar closure are acoustically abrupt and sharp, like stops, while bilabial, dental, and lateral clicks typically have longer and acoustically noisier releases that are more like affricates.