Based on your online lookups, the #1 Word of the Year for 2004 was
Blog noun [short for Weblog] (1999) : a Web site that contains an online personal journal with reflections, comments, and often hyperlinks provided by the writer
2.
incumbent 3.
electoral 4.
insurgent 5.
hurricane 6.
cicada 7.
peloton : noun (1951) : the main body of riders in a bicycle race
8.
partisan 9.
sovereignty10.
defenestration
Perhaps keeping poll tests for all U.S. citizens wouldn't be that bad of an idea. Especially when people don't know the definitions for 2, 3, 4, 8, and 9. Those would be kind of important to know in an election...
-C