The university's new curriculum included a seminar on natural philosophy to explore the historical roots of modern science.

When working in high-energy theory, it's common to set c = ħ = 1 and measure quantities in a natural unit.

Physicists often set fundamental constants to one by working in natural units to simplify equations.

After last year's floods and earthquakes, the city implemented new policies to better protect residents from natural disasters.

Economists debated whether fluctuations in supply would push natural prices above their long-term levels.

The farmer sold his grain at the natural price, which reflected the cost of production plus the average profit rate.

The villagers whispered about the extra-natural lights that danced over the lake at midnight.

Scholars compared several natural histories to trace how species descriptions changed over time.

We prefer all-natural peanut butter without any additives.

The new policy was designed to protect natural people from financial exploitation.