The word fastened has two syllables.
"Its" has one syllable.
one syllable
There is 1 syllable.
In the word "the", there is one syllable.
it has one syllable
There is 1 syllable
There is 1 syllable.
The word "to" has one syllable.
She fastened her seatbelt.We have fastened him to the altar, signal the dragon to accept the offering.
one syllable--and syllable is missing an "s". You should say "How many syllables is winked?"
Mean has only 1 syllable.
One syllable