The letter "u" that is present in the English spellings of such words as honour, colour, and labour but not in their equivalent American spellings has been harvested by American linguists since the 1870s. All of the u's collected up to this point have been put together to form one long word, consisting only of the letter u (with one extra letter "r" that no one knows the origin of). That word, which is currently 309 letters long and rhymes with harpsichord, is defined as "pork salt salad with bits of banana and cedar."