He prefers natural foods.

Her smile is very natural, and it feels comfortable.

In philosophy, natural law refers to the moral laws of the universe.

Calculating the natural logarithm is an important part of mathematics.

Natural language processing is the technology that allows computers to understand and generate human language.

I was moved by the beauty of nature.

Gender identity refers to the gender that each individual recognizes themselves as.

The use of renewable energy helps protect the global environment.

He is a person of strong vanity who reads self-improvement books.

He is facing many difficulties due to gender identity disorder.