Also found in: Thesaurus, Idioms.
Related to face-up: face off
face-upalso face up (fās′ŭp′)
In a position so that the face is up: a patient lying face-up on the stretcher.
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.