The most common words with the 5 classic vowels are the adjectives abstemious and facetious.
To include the semi-vowel Y in order, the adverb forms are abstemiously and facetiously.
A comprehensive list would be:
Aerious, Absteinous, Abstemious, Abstenious, Abstentious, Abstentiously, Aceriflorum, Aceriflorus, Acheilous, Acheirous, Acleistous, Adecticous, Adventious, Affectious, Aleikoum, Alpestrious, Anemious, Annelidous, Arsenious, Arteriosum, Arteriosus, Arterious, Avenious, Bacterious, Caesious, Camelious, Carnelious, Facetious, Fracedinous, Gareisoun, Gravedinous, Haeriously, Majestious, Materious, Parecious, Phragelliorynchus, Placentious, Tragedious
For reverse alphabetical order for vowels, there is duoliteral, juloidea, leeuwenhoekiella, muroidea, muscoidea, pulmonifera, punctoschmidtella, quodlibetal, quodlibetary, rudoiera, subcontinental, subhyoidean, subpopliteal, subvoiceband, suoidea, tutoiera, uncomplimentary, unconsiderably, uncontinental, unconvinceably, unnoticeably, unobliterably, unoccidental, unoriental, unpolicemanly, unproprietary
*Sorry, but Raeticodactylus has an A before the U so doesn't count and if we're just listing English words (as seems to be the case) then Marveillous and variations thereupon are also excluded.
Removed: Marveillous, Marveillously, Raeticodactylus,
sky,fly,fry, do not have vowels
facetiously -Armando Patella
cauliflower
authoreiaetian
The instrument that contains all the vowels is the "accordion." The word "accordion" includes the vowels A, E, I, O, and U. This makes it a unique example among musical instruments.
I really don't think there is one. If there is one it has to be a composite created for that purpose.
sequoia
Quatrefoil
The word that contains all the vowels is "euouae." It is a musical term used in medieval music, specifically in Gregorian chant notation.
The 8-letter word that contains four 'N's and the other four letters are all vowels is "announcer."
Facetious
Without vowels, you can't pronounce the words. Try to pronounce frnc. It is furnace or franc without the vowels.