Studio is a 6 letter word ending with io. Additional words include adagio, bagnio, barrio, daimio, nuncio and vibrio.
Examples of singular nouns ending in -io are:audioimpresariopatioPinocchiopistachiopolioportfolioradioratiotrio
Agio
Studio
Radio
patio, radio, audio
curiopatiopolioradiostudio
barrio, Coolio, adagio, studio
barrio, studio, Coolio, adagio
words ending with -ain:braindrainrefraingrainchaplainexplaincontainfountainmaintainmountaincomplaindisdainretaindetainbargainsustainmainpainrainslaingainstraintrainchainattainplainremainobtainpertain
Words ending in taq
Yes. In English words ending in -tion, the I is not pronounced except as a palatalization of the T, giving it an SH sound. The letter I may also be considered silent in some vowel pairs, such as: In AI words-- bail, pail, tail, lain, pain, bait, aileron, maize (AY sound)In EI and IE words -- deceive, believe, receive, retrieveIn IO words -- fashion, cushion (IO pronounced as U)In UI words -- juice, sluice, suitAnd now, one from the lighter side: No, but 'U' can!