Each face is, seen from the outside, the mirror image of the opposite face.

The height is the perpendicular distance between the base and the opposite face.

Janus-like, his image of Veronique turned on itself and showed the opposite face.

They were much the same, really; opposite faces of the coin, depending on whether anticipation was positive or negative.

Anger and tears are opposite faces of the same coin.

He quickly noticed that image transferred to the opposite face of the decal.

Jim Dunkley was just about to move away when something attracted his attention on the opposite face of the quarry.

Remember how the proposition was stated: "If the card shows an even number on one face, then its opposite face is red."

Or, it can go to the opposite face of the π system.

The light is then reflected from the opposite 30 face and exits, again at normal incidence.