sizzle..?
Another word for opportunity which begins with 'S' is scope.
strenutation
sociopath
Synthesizing.
skillful.
Scorpion? :P
assists
Substantial is a synonym for large amount. It begins with S.
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Scissors is an 8 letter word. It begins and ends with S.
Stunning is a synonym for beautiful. It begins with S.
There are a few other words or synonyms for the word web that begin with the letter s. These words include screen, snarl, and skein.