<Li> Strengths is the longest word in the English language containing only one vowel . </Li> <Li> Euouae, a medieval musical term, is the longest English word consisting only of vowels, and the word with the most consecutive vowels . However, the "word" itself is simply a mnemonic consisting of the vowels to be sung in the phrase "seculorum Amen" at the end of the lesser doxology . (Although u was often used interchangeably with v, and the variant "Evovae" is occasionally used, the v in these cases would still be a vowel .) </Li> <Li> The longest words with no repeated letters are dermatoglyphics, misconjugatedly and uncopyrightables . </Li> <Li> The longest word whose letters are in alphabetical order is the eight - letter Aegilops, a grass genus . However, this is arguably both Latin and a proper noun . There are several six - letter English words with their letters in alphabetical order, including abhors, almost, begins, biopsy, chimps and chintz . </Li>

Longest words for each letter of the alphabet