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

He likes to learn new words.

He is good at speaking Spanish.

He can speak Japanese fluently.

He is facing many difficulties due to gender identity disorder.

The feline immunodeficiency virus can potentially have serious effects on a cat's health.

This company demands uniformity in all projects.

This design has uniformity in color.

This vitamin is water-soluble, so it easily dissolves in water.

This cold is highly contagious, so please be careful with prevention.