(~s)
1.
A ~ is something which is in a pattern of straight lines that cross over each other, forming squares. On maps the ~ is used to help you find a particular thing or place.
...a ~ of ironwork.
...a ~ of narrow streets...
Many canals were built along map ~ lines.
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see also cattle ~
2.
A ~ is a network of wires and cables by which sources of power, such as electricity, are distributed throughout a country or area.
...breakdowns in communications and electric power ~s.
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3.
The ~ or the starting ~ is the starting line on a car-racing track.
The Ferrari of Alain Prost will be second on the ~.
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