I used to browse my big dictionary before but seem it’s obsolete already since I have that when I was in high school. Well, I just want to search for the longest word but it’s so hard flipping pages by pages. It’s just now that I know the longest word in the major English dictionaries. This word is Pneumonoultramicroscopicsilicovolcanoconiosis which refers to lung disease from inhaling very fine silica particles from a volcano. I find this word at en.wikipedia.org. To search more about this, just visit this link: http://en.wikipedia.org/wiki/Longest_word_in_English.