#1 field n. a piece of land cleared of trees and usually enclosed; "he planted a field of wheat". wn
#2 field n. [battlefield, battleground, field of battle, field of honor] a region where a battle is being (or has been) fought; "they made a tour of Civil War battlefields". wn
#3 field n. somewhere (away from a studio or office or library or laboratory) where practical work is done or data is collected; "anthropologists do much of their work in the field". wn
#4 field n. [discipline, subject, subject area, subject field, field of study, study, bailiwick] 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". wn
#5 field n. [field of force, force field] the space around a radiating body within which its electromagnetic oscillations can exert force on another similar body not in contact with it. wn
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