N of n
The 'diagram' group
The noun refers to a picture or representation of some kind. The noun group after of indicates what it represents.
bust copy diagram drawing illustration imitation map model photograph picture portrait portrayal prototype replica representation sketch statue
The policeman showed a diagram of the position of the body.
I did what I thought was a competent drawing of the nude model.
The colour illustration of Alice by Sir John Tenniel for 'Alice in Wonderland' was first published in 1911.
Every schoolroom and every office had a portrait or bust of Lenin.