The human immunodeficiency virus is the virus that causes AIDS.

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

My cat has been infected with the feline immunodeficiency virus.

His Japanese ability is improving gradually.

Aiki made pancakes and ate them.

Mr. Danno is a mathematics teacher.

He is suffering from acquired immune deficiency syndrome (AIDS).

She dyed her hair blue.

Their home is always filled with amiability, to the point where everyone envies them.