Definition of "ambassador" []

• A diplomatic official of the highest rank appointed and accredited as representative in residence by one government or sovereign to another, usually for a specific length of time. (noun)
• A diplomatic official heading his or her country's permanent mission to certain international organizations, such as the United Nations. (noun)
• An authorized messenger or representative. (noun)
• An unofficial representative: ambassadors of goodwill. (noun)

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.

• "The term ambassador, if taken strictly, as seems to be required by the second of the articles of Confederation, comprehends the highest grade only of public ministers, and excludes the grades which the United States will be most likely to prefer, where foreign embassies may be necessary."
• "The term ambassador conjures the picture of a rich duplicitous Jeremy Irons-type guy living in a foreign country and lying to everyone there on behalf of rich guys back in his home country."
• "Facebook group to expell the Irish Papal Nuncio (that's what they call their ambassador)"