Definition of subject:
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"
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"
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"
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"
(grammar) one of the two main constituents of a sentence; the grammatical constituent about which something is predicated
a person who is subjected to experimental or other observational procedures; someone who is an object of investigation; "the subjects for this investigation were selected randomly"; "the cases that we studied were drawn from two different communities"
a person who owes allegiance to that nation; "a monarch has a duty to his subjects"
(logic) the first term of a proposition
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"
make accountable for; "He did not want to subject himself to the judgments of his superiors"
make subservient; force to submit or subdue
refer for judgment or consideration; "The lawyers submitted the material to the court"
possibly accepting or permitting; "a passage capable of misinterpretation"; "open to interpretation"; "an issue open to question"; "the time is fixed by the director and players and therefore subject to much variation"
being under the power or sovereignty of another or others; "subject peoples"; "a dependent prince"
likely to be affected by something; "the bond is subject to taxation"; "he is subject to fits of depression"