ou
- A Hawaiian term for a type of honeycreeper bird, known for its bright plumage and native to the Hawaiian Islands. nounThe ou is a rare sight in the forests of Hawaii due to habitat loss.Birdwatchers were thrilled to spot an ou during their trip to the island.
- An informal abbreviation for 'university' often used in names of institutions, such as the Open University. nounShe completed her degree through the OU while working full-time.The OU offers a wide range of online courses for distance learning.