proportion

Noun

• 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
    

• 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
    

• balance among the parts of something

• magnitude or extent
  • a building of vast proportions
    

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

Verb

• adjust in size relative to other things

• give pleasant proportions to
  • harmonize a building with those surrounding it
    

Related words

• Synonyms: 
  proportionality , balance , ratio , symmetry , dimension