Definition of field:
a piece of land cleared of trees and usually enclosed; "he planted a field of wheat"
a region where a battle is being (or has been) fought; "they made a tour of Civil War battlefields"
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"
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"
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 kind of commercial enterprise; "they are outstanding in their field"
a particular environment or walk of life; "his social sphere is limited"; "it was a closed area of employment"; "he's out of my orbit"
a piece of land prepared for playing a game; "the home crowd cheered when Princeton took the field"
extensive tract of level open land; "they emerged from the woods onto a vast open plain"; "he longed for the fields of his youth"
(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; "the set of all rational numbers is a field"
a region in which active military operations are in progress; "the army was in the field awaiting action"; "he served in the Vietnam theater for three years"
all of the horses in a particular horse race
all the competitors in a particular contest or sporting event
a geographic region (land or sea) under which something valuable is found; "the diamond fields of South Africa"
(computer science) a set of one or more adjacent characters comprising a unit of information
the area that is visible (as through an optical instrument)
a place where planes take off and land
catch or pick up (balls) in baseball or cricket
play as a fielder
answer adequately or successfully; "The lawyer fielded all questions from the press"
select (a team or individual player) for a game; "The Buckeyes fielded a young new quarterback for the Rose Bowl"