3. somewhere (away from a studio or office or library or laboratory) where practical work is done or data is collected; - Example: "anthropologists do much of their work in the field"
4. a branch of knowledge; - Example: "in what discipline is his doctorate?" - Example: "teachers should be well trained in their subject" - Example: "anthropology is the study of human beings" [syn: discipline, subject, subject area, subject field, field, field of study, study, bailiwick]
5. the space around a radiating body within which its electromagnetic oscillations can exert force on another similar body not in contact with it; [syn: field, field of force, force field]
6. a particular kind of commercial enterprise; - Example: "they are outstanding in their field" [syn: field, field of operation, line of business]
7. a particular environment or walk of life; - Example: "his social sphere is limited" - Example: "it was a closed area of employment" - Example: "he's out of my orbit" [syn: sphere, domain, area, orbit, field, arena]
8. a piece of land prepared for playing a game; - Example: "the home crowd cheered when Princeton took the field" [syn: playing field, athletic field, playing area, field]
9. extensive tract of level open land; - Example: "they emerged from the woods onto a vast open plain" - Example: "he longed for the fields of his youth" [syn: plain, field, champaign]
10. (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; - Example: "the set of all rational numbers is a field"