vowel
US /vaʊəl/
UK /vaʊəl/

1.
vocale
a speech sound which is produced by an open vocal tract, with no audible friction, and which is a syllabic sound
:
•
The word 'cat' has one vowel sound.
La parola 'cat' ha un suono di vocale.
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English has five main vowels: a, e, i, o, u.
L'inglese ha cinque vocali principali: a, e, i, o, u.