also: はるあき
spring and autumn; spring and fall
Refers to the two seasons; often used in literary or descriptive contexts. The reading はるあき is possible but less common.
It's easy to get sick during the change of seasons in spring and autumn.
Used to refer to a person's age or the passage of years, often in formal or literary expressions. Common in phrases like 春秋に富む (to be young and have many years ahead).
He is a young man with many years ahead of him.
The Spring and Autumn Annals; Chunqiu
Only with reading しゅんじゅう
Refers to the ancient Chinese historical chronicle of the State of Lu, one of the Five Classics (五経). Reading is restricted to しゅんじゅう.
See also: 五経
The 'Spring and Autumn Annals' is a historical text traditionally said to have been compiled by Confucius.
He has already lived through fifty years.