Definition of "who's" []

• Contraction of who is. (noun-possessive)
• Contraction of who has. (noun-possessive)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "“Can't we just use a different producer with just as big a name who's not quite so . . . gloss oriented?”"
• "President Obama has even provided a definition of who's wealthy in arguing that taxes should be raised for those households with incomes of at least $250,000 a year."
• "And his story, a guy with the name Langowski who's on the Mexican wrestling team, you say, 'I've got to find out more about this.'"