Definition of ratio in English:


Line breaks: ratio
Pronunciation: /ˈreɪʃɪəʊ

noun (plural ratios)

  • The quantitative relation between two amounts showing the number of times one value contains or is contained within the other: the ratio of men’s jobs to women’s is 8 to 1
    More example sentences
    • We have reported all standardised mortality ratios as ratios rather than percentages.
    • Aspect ratio is the ratio between the width of the tire and the height of its side wall.
    • It is easier to see what is happening if we plot the ratios on a graph.
    proportion, comparative number/extent, quantitative relation, correlation, relationship, correspondence, balance; percentage, fraction, quotient


mid 17th century: from Latin, literally 'reckoning', from rat- 'reckoned', from the verb reri.

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