A syllable is a unit of pronunciation having one full vowel sound. They are not distinctly letters.
The word letter has two syllables.
The word 'letter' has two syllables: "let" and "ter".
Cattle has two syllables.
There are 2 syllables. Let-ters.
The word letter has two syllables!
The letter 'W'.
bacon
emu
Dodo
Every letter apart from 'W' has one syllable. 'W' has two syllables.
Happen has three letter in each of its two syllables: hap-pen.
Kindergartener