"In what discipline is his doctorate?", "Teachers should be well trained in their subject", "Anthropology is the study of human beings"
"The subjects for this investigation were selected randomly", "The cases that we studied were drawn from two different communities"
"A monarch has a duty to his subjects"
Related Noun(s):nationalCategory: People
"He kept drifting off the topic", "He had been thinking about the subject for several years", "It is a matter for the police"
"A moving picture of a train is more dramatic than a still picture of the same subject"
Related Noun(s):contentCategory: Objects
"He didn't want to discuss that subject", "It was a very sensitive topic", "His letters were always on the theme of love"