The combination "ough" can be pronounced in at least eight different ways. The following sentence contains them: "A rough-coated, dough-faced, thoughtful ploughman strode the streets of the borough; after falling into a slough, he started to cough and hiccough."

Rough [ruhf]

Dough [doh]

Thoughtful [thawt-fuh l]

Ploughman [ˈplaʊmən]

Borough [bur-oh, buhr-oh]

Slough [slew]

Cough [kawf, kof]

Hiccough [hik-uhp]

Don't even get me started on the British pronunciation of "Slough".

 - Ulrich Gaede -