something (a person or object or scene) selected by an artist or photographer for graphic representation | a formal exploration of addictions from a variety of academic and scientific perspectives: sociological, cultural, psychological, anthropological, and psychoanalytic. |
a branch of knowledge | |
some situation or event that is thought about | |
the subject matter of a conversation or discussion | |
(grammar) one of the two main constituents of a sentence; the grammatical constituent about which something is predicated | |
(logic) the first term of a proposition | |
a person who owes allegiance to that nation | |
a person who is subjected to experimental or other observational procedures; someone who is an object of investigation | |