um-brel-la
second
Yes. Lots of words start with a schwa that sound like umbrella, e.g. about, another, abut, astound.
No. It has a short U (uhm) sound for the first syllable.
"Its" has one syllable.
With the stress on the first syllable. The first 'a' is short (as in 'cat') and the other two are indeterminate.
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.