- Youthly Adj
- Youtuber Noun
- Yow Inter Verb
- Yowie Noun
- Yowl Noun Verb
- Yowler Noun
- Yowling Noun
- YoY Adj Adv
- Yoyo Noun Verb
- Yperite Noun
- Ypres Noun
- YTD Adj Noun
- Ytterbic Adj
- Ytterbite Noun
- Ytterbium Noun
- Yttrialite Noun
- Yttric Adj
- Yttriferous Adj
- Yttrium Noun
- Yttrocerite Noun
- Yttrogummite Noun
- Yuan Noun
- Yucatan Noun
- Yucca Noun
- Yuck Inter Noun
- Yuckier
- Yuckiness Noun
- Yucky Adj
- Yuft Noun
- Yugoslav Adj Noun
- Yugoslavia Noun
- Yugoslavian Adj Noun
- Yuk Inter Noun
- Yukkier
- Yukkiness Noun
- Yukking Noun
- Yukon Noun
- Yulan Noun
- Yule Noun
- Yuletide Noun Adj
- Yum Inter Noun
- Yum-yum Inter Noun
- Yummier
- Yummy Adj Inter
- Yunnan Noun
- Yup Inter
- Yuppie Noun
- Yuppiedom Noun
- Yuppies Noun
- Yuppy Noun
- Yurt Noun