_:vb6778686 . _:vb6778686 "(carpentry, masonry, surveying) To sight along an object or set of objects to check whether they are level or in line."@en . _:vb6778687 . _:vb6778687 "1846, W. M. Buchanan, A Technological Dictionary\u200Ehttps://books.google.com/books?id=BzRRAAAAYAAJ&pg=PA151, page 151:"@en . _:vb6778687 "Joiners, &c., bone their work with two straight edges."@en . "1" . .