- Yesteryear Subst. Adv. Adj.
- Yestreen Subst. Adv.
- Yet Adv. Konj.
- Yieldingly Adv.
- Yon Pron. Adj. Adv.
- Yond Adj. Adv. Pron.
- Yonder Subst. Adj. Adv. Pron.
- Yore Subst. Adv.
- Youthfully Adv.
- Youthly Adj. Adv.
- YoY Adj. Adv. Subst.
- YTD Adj. Subst. Adv.
- Zanily Adv.
- Zealously Adv.
- Zestfully Adv.
- Zigzag Adj. Subst. Verb Adv.
- Zionward Adv. Adj.
- Zonally Adv.
- Zoogeographically Adv.
- Zoologically Adv.