Very thin wood used (especially formerly) in bookbinding, making hatboxes, and backing pictures.
（画框等的）背板；（过去用于书籍装帧和制造帽盒的）木衬板
Example sentencesExamples
I had to smile. Here I was playing chess on a large scale board in Stockholm's town square in the midweeks of spring against a towering Samoan giant and winning.