Hi Roberta or can I call you Bobby ???????????????
I found this on the safety net at ---------------
http://www.askoxford.com/asktheexperts/faq/aboutwords/onesyllable
The one most commonly cited is screeched (nine letters). However, one ought to mention also scratched, scrounged, scrunched, stretched, and the plural nouns straights and strengths (all with nine letters).
The complete Oxford English Dictionary also indicates the existence of scraughed, scrinched, scritched, scrooched, sprainged, spreathed, throughed, and thrutched.
The OED also cites a single instance of the ten-letter word scraunched, from the 1620 English translation of Don Quixote.
But --- sheeeeeeeeeeeeeeeeeeeze is a goodun