face·downadv \ˌfās-ˈdau̇n\
Definition of FACEDOWN: with the face down
Examples of FACEDOWN:
The cards were dealt
facedown.
He fell
facedown in the sand.
http://www.merriam-webster.com/dictionary/facedownface·down (fās′do̵un′; for n., -do̵un′)
adverb
with the face or front turned downward
http://www.yourdictionary.com/facedown“
Facedown in the mud he crawled and squirmed out of the mist and away from the pit until he felt safe enough to collapse and hug the earth.”
http://www.wordnik.com/words/Facedownface•down—adv.
with the face or the front or upper surface downward: He was lying facedown on the floor. Deal the cards facedown on the table.
http://dictionary.infoplease.com/facedownfacedownAlternative forms
face-downAdverb
facedown (not comparable)
(of a person or object) In a manner such that the face, front, or surface which is normally directed forward for viewing is positioned downward.
- She was sleeping
facedown on the sofa.
- He placed the page
facedown on the table so that we could not see its contents.
http://en.wiktionary.org/wiki/facedown---
[...]At some point that night, police say, he killed Nancy, most likely by pinning her
face-down to the floor and strangling her with a cord (authorities found her in a second-floor office lying in a pool of blood, wrapped in a towel, with her arms and legs bound).[...]
http://www.newsweek.com/2007/06/28/chris-beno...[...]He said the SWAT team was able to surreptitiously insert a tiny camera lens into the room and saw Carlson's body
face-down on the floor, which prompted officers to enter the room.[...]
http://voices.washingtonpost.com/crime-scene/... 
