mullions

"Behind the picture was a panel on the wall."

"The dry-stone wall used a large, flat through to support the top stones. "

"To separate out the chaff, early cultures tossed baskets of grain into the air and let the wind blow away the lighter chaff."

"The baseball shattered two panes of glass in the school window. "

"The water from the leaky faucet streamed down the wall. "

"The seamstress used a sturdy between to create a precise, even stitch on the thick upholstery fabric. "

"a fire screen"

"a wall divides two houses; a stream divides the towns"

"The vertical of the mountain range was a breathtaking sight. "

"The teacher was highlighting the important vocabulary words in the textbook. "

"She opened the casements wide to let the fresh morning air into the kitchen. "

"Sunlight on the skin gives you vitamin D."