proportion

harmonious arrangement or relation of parts or elements within a whole (as in a design)

in all perfectly beautiful objects there is found the opposition of one part to another and a reciprocal balance"- John Ruskin

magnitude or extent

a building of vast proportions

the relation between things (or parts of things) with respect to their comparative quantity, magnitude, or degree

an inordinate proportion of the book is given over to quotations

a dry martini has a large proportion of gin

the quotient obtained when the magnitude of a part is divided by the magnitude of the whole

balance among the parts of something

adjust in size relative to other things

give pleasant proportions to

harmonize a building with those surrounding it