Here are some five-letter words with three vowels: abaci abase abate abeam abide abode about above abuse acute adage adieu adios adobe adore aegis aeons aerie afire afoot afoul again agape agate agave agile agree ahead aided aides ailed aimed aired aisle algae alias alibi alien alike alive aloes aloha alone aloof aloud amaze ameba amigo amour amuse anise anode aorta apace areas arena argue arias arise aroma arose aside atone atria audio audit auger augur aural auras autos avail avian avoid await awake aware awoke axial axiom azure baaed baize bayou beaus beaut beaux beige belie bijou bogie booed booze caaed cacao cameo canoe cause cease cilia cocoa cooed coupe curie curio cutie deeve deice deuce diode dixie dobie dogie douse eager eagle eased easel eases eaten eater eaves edema eerie eider elate elide elite elope elude email emcee emote enema ennui ensue epees equal equip erase erode etude euros evade evoke exile exude eyrie fauna folio fugue gauge gauze geese genie genii gooey goose gouge guano guava guide guile guise haiku heave hooey house iambi icier ideal ideas idiom idiot igloo image imbue inane indie inure irate issue ivied ivies ixias ixora joule juice kaama kazoo koala labia lease leave levee liege loose louse mafia maize mania mauve media melee miaow moire mooed moose mouse movie moxie naiad naive niece noise noose novae oaken oakum oases oasis obese oboes ocean odium odour oiled oldie olive omega onion oohed oozed oozes opera opine opium orate osier ounce outdo outed outer outre ouzos ovoid ovule oxide ozone ozzie paean patio pause payee peace peepe peeve pekoe piano piece pilau pious pique pixie podia poise polio pooed psoae psoai pupae puree quail quake quasi queen queer queue quiet quire quite quoit quota quote radii radio raise ranee ratio reuse revue rodeo rogue rouge rouse route rupee saree sauce sauna saute segue seine seise seize sepia siege sieve sooey soole souse suave suede suite taboo taupe tease tepee tiara tibia topee toque ulnae umiak undue union unite untie urine usage usual uteri uvula vacua vague value venue video viola vireo vogue voice voila voile waive wazoo weave wooed wooer wuxia xenia yahoo zamia Here are some precious 5-letter words featuring four vowels!
adieu
aerie
aioli
audio
aurae
eerie
queue zoeae
And finally, some six-letter words with four vowels: acacia adagio adieus adieux aerate aerial aeries airier amebae amoeba anemia apiece apogee arouse auntie avenue azalea beanie boogie boohoo bookie bootie bureau cookie coolie dearie easier eerier equate equine eureka foodie footie gateau goalie goatee goodie gooier guinea heaume hoagie iguana iodine iodize ionise ionize league liaise meanie milieu muumuu nausea nookie odious oeuvre oilier opaque opiate oriole otiose outage peewee queued queues roadie rookie soiree teepee tibiae toupee ubique unease unique utopia voodoo weenie weepie
And finally, some six-letter words with four vowels: acacia adagio adieus adieux aerate aerial aeries airier amebae amoeba anemia apiece apogee arouse auntie avenue azalea beanie boogie boohoo bookie bootie bureau cookie coolie dearie easier eerier equate equine eureka foodie footie gateau goalie goatee goodie gooier guinea heaume hoagie iguana iodine iodize ionise ionize league liaise meanie milieu muumuu nausea nookie odious oeuvre oilier opaque opiate oriole otiose outage peewee queued queues roadie rookie soiree teepee tibiae toupee ubique unease unique utopia voodoo weenie weepie