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ratio Syllabification: ra·tio
Pronunciation: /ˈrāSHēˌō/

Definition of ratio in English:

noun (plural ratios)

1The 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, correlation, relationship, correspondence;
percentage, fraction, quotient
1.1The relative value of silver and gold in a bimetallic system of currency.


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

Words that rhyme with ratio

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