ratio - definition and synonyms

 
 
 
noun [countable] maths 

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/ˈreɪʃiəʊ/
singularratio
pluralratios
  1. a relationship between the sizes of two numbers or amounts

    a teacher-student ratio of 1:20 (=1 teacher for every 20 students)

    the ratio of someone/something to someone/something:

    The ratio of expenditure to revenue was an alarming 4:1.