thirty one
/ˈθɜːrti wʌn/
noun
- The number 31, which comes after thirty and before thirty-two.
- She counted thirty-one students in the classroom.
- He turned thirty-one last week and celebrated with a small party.
- The recipe calls for thirty-one grams of sugar.
adjective
- Being one more than thirty in number; 31 in quantity.
- She has thirty-one pairs of shoes in her closet.
- The bus route has thirty-one stops.
- There are thirty-one days in January.