19-letter words containing a, m, o, u
- welsh mountain pony — a small sturdy but graceful breed of pony used mostly for riding, originally from Wales
- wide-angle glaucoma — open-angle glaucoma. See under glaucoma.
- wouldn't harm a fly — If you say that someone wouldn't hurt a fly or wouldn't harm a fly, you are emphasizing that they are very kind and gentle.
- wraparound mortgage — a mortgage, as a second mortgage, that includes payments on a previous mortgage that continues in effect.
- yablonovy mountains — a mountain range in Siberia. Highest peak: 1680 m (5512 ft)
- yeoman of the guard — a member of the bodyguard of the English sovereign, instituted in 1485, which now consists of 100 men, including officers, having purely ceremonial duties.