pneumono- in American English combining form. a combining form meaning “lung,” used in the formation of compound words. pneumonoultramicroscopicsilicovolcanoconiosis was my spelling bee challenge word in 4th grade. It's also the longest English word with (45) letters total. Supercalifragilisticexpialidocious is the 5th longest English word and has (34) letters total. I figured they would be fun to put together since they rhyme. Enjoy #WATC #WeAreTheChildren #Rap #Hip #Hop #Pneumono #Lung #New #Lust #Fire #Dope #Bars #Rap_Fame