forties
nounUK /ˈfɔːtiz/
US /ˈfɔːrtiz/
The forties are the years from 40 to 49 in a person's life or in a century.
My dad is in his forties.
RELATED WORDS
OTHER MEANINGS
2. The years from 1940 to 1949.
The war ended in the forties.
3. Temperatures between 40 and 49 degrees.
It was a chilly day in the forties.
4. The numbers from 40 to 49.
Count the forties on the number chart.