Day #3

Days to book launch: 26
Days to BEA in NYC: 12

HAPPY WEDNESDAY! And Happy Birthday to Rachael, Sarah, and Strauss! Quite the day for birthdays :)

Today's question is for fans of words: The word 'balloon' has two double letters in a row, l-l-o-o. What is the only word in the English language with three double letters in a row?

First correct answer wins :)