thirties

/ˈθɜːrtiz/
noun
  1. The period of time between the ages of 30 and 39.
    • He felt more confident in his thirties than in his twenties.
    • Many people get married in their thirties.
    • She started her own business in her thirties.
  2. The range of temperatures from 30 to 39 degrees.
    • We had a heatwave, with highs in the upper thirties Celsius.
    • The temperature stayed in the thirties all week.
    • It was cold outside, with temperatures in the low thirties.
  3. The decade of the 1930s.
    • Fashion in the thirties was very elegant.
    • My grandmother was born in the thirties.
    • The Great Depression happened in the thirties.
What does "thirties" mean? | whatsthatwordmean | whatsthatwordmean