Dictionary.com
Thesaurus.com

Baum

American  
[bawm, bahm, boum] / bɔm, bɑm, baʊm /

noun

  1. L(yman) Frank 1856–1919, U.S. journalist, playwright, and author of children's books.

  2. Vicki, 1888–1960, U.S. novelist, born in Austria.


Baum British  
/ bɔːm, bɑːm /

noun

  1. L ( yman ) Frank 1856–1919, US novelist, author of The Wonderful Wizard of Oz (1900) and its sequels

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012