One syllable. If it was two, it would be something like this: gr/ow. Say it to yourself. Then just say: grow. See the difference?
The word "growing" has two syllables: grow-ing.
Its two syllables... proof: grow-ing
There are three Chinese syllables in the word "syllables."
The word 'answer' has 2 syllables. An-swer.
There are four syllables in the word "usually".
The syllables in the word what is only 1 : "what".
The word has three syllables.
2 syllables in the word weekend
there are two syllables in the word grueling
The word burnol has two syllables. The syllables in the word are bur-nol.
The word moving has two syllables. The syllables in the word are mo-ving.
The word owner has two syllables. The syllables in the word are own-er.