Prevention of venereal diseases is important.

He found it difficult to admit that he was dealing with gender dysphoria.

Could you show me your passport to confirm your identity?

The lifelong separation from him was a very painful experience for me.

After parting with him for life, I started a new life.

When I looked up at the night sky, I saw a beautiful asterism.

Polyarchy refers to a system where many people make political decisions.

This plant is bisexual, with male and female flowers occurring on the same plant.

This compound has a high basicity.

This water has high alkalinity, so it is gentle on the skin.