definition of
subject

[1] #1 subject n. [topic, theme] the subject matter of a conversation or discussion; "he didn't want to discuss that subject"; "it was a very sensitive topic"; "his letters were always on the theme of love". wn

[2] #2 subject n. [content, depicted object] something (a person or object or scene) selected by an artist or photographer for graphic representation; "a moving picture of a train is more dramatic than a still picture of the same subject". wn

[3] #3 subject n. [discipline, subject area, subject field, field, field of study, study, bailiwick] a branch of knowledge; "in what discipline is his doctorate?"; "teachers should be well trained in their subject"; "anthropology is the study of human beings". wn

[4] #4 subject v. cause to experience or suffer or make liable or vulnerable to; "He subjected me to his awful poetry"; "The sergeant subjected the new recruits to many drills"; "People in Chernobyl were subjected to radiation". wn

[5] #5 subject n. [topic, issue, matter] some situation or event that is thought about; "he kept drifting off the topic"; "he had been thinking about the subject for several years"; "it is a matter for the police". wn