Noun
This is a unit of speech that is made up of a vowel sound or contains one vowel sound with one or more consonant sounds.
Examples:
The word “one” has one sound and has only one syllable.
The word “twenty” (twen/ty) contains two vowel sounds and has two syllables.
The word “environment” (en/vi/ron/ment) contains four vowel sounds and syllables.