1. The period of life between youth and old age, typically considered to be from around 40 to 60 years old
She entered middle age with confidence and wisdom.
Ela entrou na meia-idade com confiança e sabedoria.
2. A stage of human development characterized by physical and psychological changes
Many people experience significant life changes during middle age.
Muitas pessoas experimentam mudanças significativas na vida durante a meia-idade.