What does it describes?

Well you describe all of the body from head to toe for example beautiful, ugly, cute, and picturesque would describe a kinkajou.

Music theory is the study of how music works. It examines the language and notation of music. It seeks to identify patterns and structures in composers' techniques, across or within genres, styles,...

Childish. My father is a self-centered, cruel, rude man, and my mother is a childish, passive-aggressive woman. Both my sisters are just like them, and any time you try to have a real discussion...

Don't lie. Say if you are trustworthy, loyal, friendly, passive, considerate, hard worker, dilligent, punctual, whatever is relevent.

Descibe means to explain/ talk more about the topic