something (a person or object or scene) selected by an artist or photographer for graphic representation | a particular kind of commercial enterprise |
a branch of knowledge | a place where planes take off and land |
some situation or event that is thought about | a branch of knowledge |
the subject matter of a conversation or discussion | the area that is visible (as through an optical instrument) |
(grammar) one of the two main constituents of a sentence; the grammatical constituent about which something is predicated | (mathematics) a set of elements such that addition and multiplication are commutative and associative and multiplication is distributive over addition and there are two elements 0 and 1 |
(logic) the first term of a proposition | all of the horses in a particular horse race |
a person who owes allegiance to that nation | all the competitors in a particular contest or sporting event |
a person who is subjected to experimental or other observational procedures; someone who is an object of investigation | (computer science) a set of one or more adjacent characters comprising a unit of information |
| a piece of land cleared of trees and usually enclosed |
| somewhere (away from a studio or office or library or laboratory) where practical work is done or data is collected |
| a piece of land prepared for playing a game |
| a region in which active military operations are in progress |
| a region where a battle is being (or has been) fought |
| a geographic region (land or sea) under which something valuable is found |
| extensive tract of level open land |
| the space around a radiating body within which its electromagnetic oscillations can exert force on another similar body not in contact with it |
| a particular environment or walk of life |