The voiceless or more precisely tenuis (post)alveolar click is a click consonant found primarily among the languages of southern Africa.
The symbol in the International Phonetic Alphabet for a tenuis alveolar click with a velar rear articulation is ⟨k͡ǃ⟩ or ⟨k͜ǃ⟩, commonly abbreviated to ⟨kǃ⟩, ⟨ᵏǃ⟩ or simply ⟨ǃ⟩; a symbol abandoned by the IPA but still preferred by some linguists is ⟨k͡ʗ⟩ or ⟨k͜ʗ⟩, abbreviated ⟨kʗ⟩, ⟨ᵏʗ⟩ or just ⟨ʗ⟩. For a click with a uvular rear articulation, the equivalents are ⟨q͡ǃ, q͜ǃ, qǃ, 𐞥ǃ⟩ and ⟨q͡ʗ, q͜ʗ, qʗ, 𐞥ʗ⟩.
Sometimes the accompanying letter comes after the click letter, e.g. ⟨ǃk⟩ or ⟨ǃᵏ⟩; this may be a simple orthographic choice, or it may imply a difference in the relative timing of the releases.[2]
^Kirshenbaum assigns ⟨c!⟩ indifferently to both alveolar and palatal clicks.