RhymeZone: proportions definitions

Definitions of proportion:

noun: harmonious arrangement or relation of parts or elements within a whole (as in a design)
noun: magnitude or extent
Example: "A building of vast proportions"
noun: the quotient obtained when the magnitude of a part is divided by the magnitude of the whole
noun: balance among the parts of something
verb: give pleasant proportions to
verb: adjust in size relative to other things

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See proportion used in context: 5 rhymes, 5 Shakespeare works, several books and articles.