n.

1. the subject matter of a conversation or discussion;
   topic, theme
   
   • he didn't want to discuss that subject
   • it was a very sensitive topic
   • his letters were always on the theme of love
2. some situation or event that is thought about;
   topic, issue, matter
   
   • he kept drifting off the topic
   • he had been thinking about the subject for several years
   • it is a matter for the police
3. a branch of knowledge;
   discipline, subject area, subject field, field, field of study, study, bailiwick, branch of knowledge
   
   • in what discipline is his doctorate?
   • teachers should be well trained in their subject
   • anthropology is the study of human beings
4. something (a person or object or scene) selected by an artist or photographer for graphic representation;
   content, depicted object
   
   • a moving picture of a train is more dramatic than a still picture of the same subject
5. a person who is subjected to experimental or other observational procedures; someone who is an object of investigation;
   case, guinea pig
   
   • the subjects for this investigation were selected randomly
   • the cases that we studied were drawn from two different communities
6. a person who owes allegiance to that nation;
   national
   
   • a monarch has a duty to his subjects
7. (grammar) one of the two main constituents of a sentence; the grammatical constituent about which something is predicated
8. (logic) the first term of a proposition

v.

1. 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
2. make accountable for
   
   • He did not want to subject himself to the judgments of his superiors
3. make subservient; force to submit or subdue;
   subjugate
4. refer for judgment or consideration;
   submit
   
   • She submitted a proposal to the agency

adj.

1. not exempt from tax;
   subject(p)
   
   • the gift will be subject to taxation
2. possibly accepting or permitting;
   capable, open
   
   • 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
3. being under the power or sovereignty of another or others;
   dependent
   
   • subject peoples
   • a dependent prince
4. likely to be affected by something (especially something unpleasant)
   
   • the bond is subject to taxation
   • he is subject to fits of depression