The rear part of a chair that supports the sitter's back.(noun)
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Use "chairback" in a sentence
"In the first two ticket cycles at Rentschler Field, all "chairback" seats were sold at one price with one standard annual seat donation regardless of their location."
"A professional nod, but his hand clenched on the top of the chairback beside him, his skin having the warm golden-brown tone of someone whose ancestry appeared to be a mix of Asian and Caucasian."
"I had a gig-bag hanging on the chairback, unzipped, wide-mouthed staring at the too-drunk-to-fuck geezer burping up acid from a liver gone sour-milk and he had the guts to smile at me."