In a pond ecosystem, a secondary consumer like a frog eats primary consumers such as insects, demonstrating that it eats what is below it in the food chain.

The author spent years building a secondary world with its own history, languages, and ecology.

Writers often retreat into secondary worlds to experiment with morality and culture.

The company shifted its investment to the secondary sector to capitalize on growing demand for processed goods.

The city's economy relies heavily on secondary industries, such as automobile manufacturing and steel production.

Many governments invest in secondary sectors to create jobs and boost exports.

Secondary smoking around infants increases their risk of developing asthma.

Despite earning enough to stay above the official poverty line, his addiction to alcohol and gambling pushed him into secondary poverty.

Homeowners are increasingly adding secondary suites to their properties to generate rental income.

They converted the garage into a secondary suite to rent out to a graduate student.