From Longman Dictionary of Contemporary Englishodd numberodd numberHMNa number that cannot be divided exactly by two, for example 1,3, 5,7 etc opp even number → odd

Examples from the Corpus

odd number• Erect verticals upon the odd numbers, 1,3, 5,7, etc.• Clearly the northern fleet is being reinforced from the southern; but why the odd numbers?• I have no idea why it is always an odd number.• He said that we have to prove that no odd number can be perfect.• An odd number of classes provides a neutral mid-point.• You need to have an odd number of colours, including the background.• An individual scorer might be useful where an odd number of people are concerned.• Three arrangements with eight fences; five with ten fences ... odd numbers ... Was there a pattern?