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'.
The letter "W" has two syllables when pronounced as "double-u." Each part of the name, "double" and "u," contributes one syllable, making a total of two syllables.
emu
bacon
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.