Read the dictionary definition of field. All definitions for this word.
1. a particular kind of commercial enterprise
1. they are outstanding in their field
2. a place where planes take off and land
3. the area that is visible (as through an optical instrument)
4. a branch of knowledge
1. in what discipline is his doctorate?
2. teachers should be well trained in their subject
3. anthropology is the study of human beings
5. all the competitors in a particular contest or sporting event
6. all of the horses in a particular horse race
7. (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
1. the set of all rational numbers is a field
8. (computer science) a set of one or more adjacent characters comprising a unit of information
9. a region where a battle is being (or has been) fought
1. they made a tour of Civil War battlefields
10. a region in which active military operations are in progress
1. the army was in the field awaiting action
2. he served in the Vietnam theater for three years
11. somewhere (away from a studio or office or library or laboratory) where practical work is done or data is collected
1. anthropologists do much of their work in the field
12. a piece of land cleared of trees and usually enclosed
1. he planted a field of wheat
13. a piece of land prepared for playing a game
1. the home crowd cheered when Princeton took the field
14. a geographic region (land or sea) under which something valuable is found
1. the diamond fields of South Africa
15. extensive tract of level open land
1. they emerged from the woods onto a vast open plain
2. he longed for the fields of his youth
16. the space around a radiating body within which its electromagnetic oscillations can exert force on another similar body not in contact with it
17. a particular environment or walk of life
1. his social sphere is limited
2. it was a closed area of employment
3. he's out of my orbit
18. select (a team or individual player) for a game
1. The Buckeyes fielded a young new quarterback for the Rose Bowl
19. answer adequately or successfully
1. The lawyer fielded all questions from the press
20. play as a fielder
21. catch or pick up (balls) in baseball or cricket