Yes and no are both one syllable.
Yes. It has only one syllable.
Yes it has one syllable.
Yes, the word vase has one syllable.
yes hues is one syllable
Yes it is one syllable. Every word has at least one syllable.
Yes, dried is one syllable.
Yes. It is a one syllable word.
Yes, coins is one syllable.
Why Yes, "what" is a word with one syllable.
Yes, "rock" has one syllable.
Yes, "rich" has one syllable.
Yes, this is a one syllable word.