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the above transcription of piston is a detailed (narrow) transcription according to the rules of the International Phonetic Association; you can find a description of each symbol by clicking the phoneme buttons in the secction below.
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An example use of piston in a speech by a native speaker of british english:
“… spring activated piston you saw it you'd …”
A piston is a rod that moves in and out of a cylinder by the force of a fluid.
the word piston occurs in english on average 1.8 times per one million words; this frequency warrants it to be in the study list for C2+ level of language mastery according to CEFR, the Common European Framework of Reference.