There is only one syllable in the word girl.
Casey and Hunter
The word is all one syllable.
A one syllable animal name is dog. A two syllable animal name is tiger.
Mike
I would choose a one syllable name as a middle name, or at most a 2 syllable name with the stress on the second syllable. Ann, or Marie, for example, or Lynn.
Lyn
Bryce is a one syllable name.
There is one syllable.
It has one syllable.
With a V and long I - v-i-tch (one syllable) Or, a W and long I - w-i-tch (one syllable)
Brad has one syllable.