hip·pie also hip·py (hĭp'ē)
n., pl., -pies.
A person who opposes and rejects many of the conventional standards and customs of society, especially one who advocates extreme liberalism in sociopolitical attitudes and lifestyles.

[From HIP².]

hippiedom hip'pie·dom n.

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The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.

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