Sentence:  He also bought a huge square of <WSD>pegboard</WSD> for hanging up his tools , and lumber for his workbench , sandpaper and glue and assorted nails , levels and T squares and plumb lines and several gadgets that he had no idea how to use or what they were for . 
Meaning of the word marked with <WSD> tags:  a board perforated with regularly spaced holes into which pegs can be fitted