| But in general, labiodental stops are not used in the world's languages. |
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| The alphabet was last revised in May 2005 with the addition of a letter for a labiodental flap. |
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| A few languages such as Banda have a bilabial flap as the preferred allophone of what is elsewhere a labiodental flap. |
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| The speech pattern, called a labiodental approximant, can be corrected through coaching. |
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| Some ad hoc letters have appeared in the literature for the retroflex lateral flap, the voiceless lateral fricatives, the epiglottal trill, and the labiodental plosives. |
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