Definition of "hasn't" []

• Contraction of has not. (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.

• "She informed me the term 'hasn't called' expires somewhere around Day 4."
• "A Twitter account under his name hasn't published any messages."
• ""The word hasn't been defined well enough at all, so for years companies have been able to get away with basically defining it themselves," said Michele Simon , an author and food-policy expert."