Question

What do you mean by imperial

Answer 1

The definition of imperial is something magnificent, domineering or related to an empire.

Answer 2

1 ) relating to an empire.
2 ) relating to or denoting the system of non-metric weights and measures (the ounce, pound, stone, inch, foot, yard, mile, acre, pint, gallon, etc.) formerly used for all measures in the UK, and still used for some.
3 ) (of a size of paper, in the UK) measuring 762 × 559 mm (30 × 22 inches).
hope it helps!