0 ▁letters ) ▁was ▁co ined ▁by ▁George ▁Bernard ▁Shaw . ▁ ▁Str ength s ▁is ▁the ▁longest ▁word ▁in ▁the ▁English ▁language ▁containing ▁only ▁one ▁v owel ▁letter . ▁ ▁Eu ou ae , ▁a ▁medieval ▁musical ▁term , ▁is ▁the ▁longest ▁English ▁word ▁consisting ▁only ▁of ▁v ow els , ▁and ▁the ▁word ▁with ▁the ▁most ▁consecutive ▁v ow els . ▁However , ▁the ▁" word " ▁itself ▁is ▁simply ▁a ▁m nem onic ▁consisting ▁of ▁the ▁v ow els ▁to ▁be ▁s ung ▁in ▁the ▁phrase ▁" se cul orum ▁A men " ▁at ▁the ▁end ▁of ▁the ▁less er ▁do x ology . ▁( Al though ▁u ▁was ▁often ▁used ▁inter change ably ▁with ▁v , ▁and ▁the ▁variant ▁" E v ov ae " ▁is ▁occasionally ▁used , ▁the ▁v ▁in ▁these ▁cases ▁would ▁still ▁be ▁a ▁v owel .) ▁ ▁The ▁longest ▁word ▁with ▁no ▁repeated ▁letters ▁is ▁sub der mat og lyph ic . ▁ ▁The ▁longest ▁word ▁whose ▁letters ▁are ▁in ▁alphabet ical ▁order ▁is ▁the ▁eight - letter ▁A eg il ops , ▁a ▁grass ▁genus . ▁However , ▁this ▁is ▁arg u ably ▁a ▁proper ▁n oun . ▁There ▁are ▁several ▁six - letter ▁English ▁words ▁with ▁their ▁letters ▁in ▁alphabet ical ▁order , ▁including ▁ab h ors , ▁almost , ▁begins , ▁bi ops y , ▁chim ps ▁and ▁ch int z . ▁There ▁are ▁few ▁ 7 - letter ▁words , ▁such ▁as ▁" b ill owy ". ▁ ▁The ▁longest