adv. /fays"down"/ ; n. /fays"down'/ , adv.
1. with the face or the front or upper surface downward: He was lying facedown on the floor. Deal the cards facedown on the table.
n.
2. Also, face-down . Informal. a direct confrontation; showdown.
[ 1930-35; (def. 1) FACE + DOWN 1 ; (def. 2) n. use of v. phrase face down ]