Definition of "Lou"

Lou¹

/luː/

proper noun
countable and uncountable, plural Lous
1. (countable) A unisex given name
  1. A diminutive of the male given name Louis.
  2. A diminutive of the female given names Louisa or Louise; often also used as a middle name.
2. (with definite article) A nickname for St. Louis. A city in Missouri, United States

Lou²

proper noun
1. A Southeast Admiralty Islands language spoken on Lou Island of Manus Province, Papua New Guinea.
2. The Torricelli language of Papua New Guinea.