The English language is a crazy thing, isn't it? I got this one in an email today and thought it was interesting, given this site has a children's dictionary and all:
The letter combination "ough" can be pronounced in nine different ways. The following sentence contains them all:
"A rough-coated, dough-faced, thoughtful ploughman strode through the streets of Scarborough; after falling into a slough, he coughed and hiccoughed."