There, amid shelves, crates and stacks of boxes jammed with reference books, folders and back issues of Verbatim, [Erin McKean], 34, carries on her dual lexicographical roles: Verbatim editor and editor-in-chief of U.S. dictionaries for Oxford University Press. "Oxford takes 110 percent of my time, but the other 40 percent is Verbatim time," McKean explains.