Also found in: Idioms.
adv. & adj.
a. With the top facing upward: Keep this box right-side up.
b. In or into the correct orientation: The curator made sure the abstract paintings were hung right-side up.
2. In or into a condition of order: Get this house right-side up before any guests arrive.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.