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In phonetics, a flap or tap is a type of consonantal sound, which is produced with a single contraction of the muscles so that one articulator is thrown against another. The main difference between a flap and a stop consonant is that in a flap, there is no buildup of air pressure behind the place of articulation.
The flap or tap consonants identified by the International Phonetic Alphabet are:
| IPA Symbol | Name | Example | Meaning | |
|---|---|---|---|---|
| ɾ | Alveolar flap | Spanish | [peɾo] | pero (="but") |
| ɺ | Lateral alveolar flap | |||
| ɽ | retroflex flap | |||