For information on the WTF patterns' meanings follow this link:
You'll find the meanings of all the Taegeuk patterns as well as each of
the Black Belt patterns (Koryo through Ilyo). If you click on the
link at the bottom of that page you'll see pictures of the pattern "shape"
as well as some other info.
For information on the ITF patterns' meanings follow this link:
Here you'll find the meanings for all of the ITF patterns, including pronounciation