S: (n) diagram (a drawing intended to explain how something works; a drawing showing the relation between the parts)
S: (n) drawing (a representation of forms or objects on a surface by means of lines) "drawings of abstract forms"; "he did complicated pen-and-ink drawings like medieval miniatures"
S: (n) representation (a creation that is a visual or tangible rendering of someone or something)
S: (n) creation (an artifact that has been brought into existence by someone)