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.

Definition of ratio in: