proportion

nouns

the quotient obtained when the magnitude of a part is divided by the magnitude of the whole
is a type of (narrower)
the ratio of two quantities to be divided
magnitude or extent
"a building of vast proportions"
balance among the parts of something
antonym
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"
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

verbs

give pleasant proportions to
"harmonize a building with those surrounding it"
is a type of (narrower)
bring (several things) into consonance or relate harmoniously
"harmonize the different interests"
adjust in size relative to other things
is a type of (narrower)
alter or regulate so as to achieve accuracy or conform to a standard
"Adjust the clock, please"; "correct the alignment of the front wheels"