Imperial
Imperial turns up in 2 fields: printing, units. Here is what it means to the people in each one.
Imperial in printing
A traditional paper size measuring 22 by 32 inches for printing paper.
A historic British paper size specification. For printing paper, an imperial sheet measures 22 by 32 inches, while the writing paper variant measures 22 by 30 inches. It was widely used for large format books, maps, and fine art prints before the widespread adoption of standardized metric sizes.
"The client wants this bound as an imperial octavo, which will give us a nice tall page."
Imperial in units
A system of weights and measures established by the British Empire.
The imperial system defines traditional units like the pound, yard, and gallon. It was standardized in the UK to unify various local measurements. While similar to United States customary units, there are significant differences in volume measurements. An imperial gallon is noticeably larger than a US gallon, which directly affects fuel economy calculations and fluid capacities on imported machinery.
"You need an imperial socket set for that old tractor because the metric ones will round off the bolt heads."