17-letter words containing o, y, s, t
- visitors' gallery — a balcony in a building such as a parliament or court where members of the public can sit
- voice synthesizer — a computer system that is used to artificially produce the human voice
- yellowstone falls — a waterfall in NW Wyoming, in Yellowstone National Park on the Yellowstone River
- yellowstone river — river flowing from NW Wyo. through Mont. into the Missouri River: 671 mi (1,080 km)
- yesterday morning — during the morning of the day preceding today
- yorkshire terrier — one of an English breed of toy terriers having a long, silky, straight coat that is dark steel blue from the back of the skull to the tail and tan on the head, chest, and legs.
- zygomatic process — any of several bony processes that articulate with the cheekbone.