What is the sentence for syllable?

There is no single sentence for "syllable". It's a word itself, meaning a unit of pronunciation that consists of a single vowel sound, with or without surrounding consonants.

Perhaps you are looking for examples of sentences using the word "syllable"?

For example:

* "The word 'banana' has three syllables."

* "Each syllable in a word can be stressed or unstressed."

* "Learning to break words into syllables can help improve reading skills."

If you have a different question in mind, please rephrase your request.