Having a rack bombarded with Vowels can be frustrating. It's even more frustrating if you exchange them yet end up with the same vowels. That's why it is also wise if you can play those vowels away to at least gain points while leaving a manageable number of vowels in your rack. These are some of my favorite words that are rich in vowels:

3-letter word:
EAU - this is probably the longest word and the only 3-letter word that has no consonant in the TWL dictionary.

4-letter words:
AEON
AGUE
ETUI
LUAU
MEOU
MOUE
NAOI
OHIA
ROUE
TOEA

5-letter words:
AALII
ADIEU
MIAOU
OURIE
URAEI

containing power tiles:
letter K: AKEE
letter J: AJEE, JIAO
letter X: EAUX, IXIA
letter Q: AQUA, AQUAE, QUAI, QUEUE
letter Z: OOZE, OUZO, ZOEA, ZOEAE,

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