From HomoExcelsior

1. A measure of spatial extent, especially width, height, or length. 2. a problem of alarming dimensions. 3. William S. Paley 4. One of the least number of independent coordinates required to specify uniquely a point in space or in space and time. 5. The range of such a coordinate. 6. Velocity has the dimensions of length divided by time. 7. To cut or shape to specified dimensions. 8. To mark with specified dimensions.

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