According to BtN,
Rebecca means "a snare". In my Bible classes, I had always been told it means "captivating". There are also comments to that affect on this site. I'm thinking this is due to different interpretations of the original Hebrew/Aramaic. Does anyone know for sure?
"It's the job that is never started that takes the longest to finish." - J.R.R. Tolkien
http://www.babynames.com/namelist/9415432