moving down► down to a lower position or place: · I told you not to climb on that table. Get down!down into/to/from etc: · He's gone down to the basement to get some more beer.· The accident happened when we were coming down off the mountain.roll/fall/jump etc down: · Tears began to roll down her cheeks.· The heat of the fire brought ceilings crashing down onto the floor.look/glance/stare etc down: · She gazed down at the ring on her finger.· The doctor glanced down at the notepad on his desk.
► downwards British also downward American moving, looking, or pointing towards a lower level or towards the ground: · We came to a path winding downwards through the trees.· He was gazing downward into the pit.
► downhill if you move, walk, drive etc downhill , you go down a slope: · We set off downhill towards the lake.· After we get to the top it'll be downhill all the way to Kendal.
► earthwards British also earthward American formal down towards the ground from the sky or from a high place: · Moments later he tripped and was falling earthwards.· Flight 427 suddenly rolled and plunged earthward as it approached Pittsburgh.
► downward going or moving towards a lower level or towards the ground: · He managed to pull himself free with a sudden downward movement of his hands.· She gave the bell-rope a swift downward tug.· The downward pressure on my chest became more intense.
► face down if someone is lying face down , they are lying with their face on the ground or a surface: lie face down: · Douglas found her lying face down on the floor.collapse/land/fall etc face down: · She was flung violently forward, to land face down in a heap of blankets.
towards the earth’s surface: 
The missile fell earthwards.—earthward adjective