Imagine telling someone how to get to your home, but without using the name of your street, or any other street within ten miles. Could you do it? We take street names for granted, but these words are useful for far more, like applying for a job or...
chalk n.— «Chalk: Years ago—before computers, if you can imagine—bets were recorded on a large chalkboard. The favorites would get the most checks and thus the most chalk, making picking the chalk the term for picking the favorite. This...
chalk n. the personnel and equipment that make up the load of an aircraft. Editorial Note: Almost certainly an extension of a chalk as a record-keeping mark, which dates at least 400 years. (source: Double-Tongued Dictionary)