field

noun

1. 1

   a particular kind of commercial enterprise

   they are outstanding in their field

2. 2

   a place where planes take off and land

3. 3

   the area that is visible (as through an optical instrument)

4. 4

   a branch of knowledge

   in what discipline is his doctorate?

   teachers should be well trained in their subject

5. 5

   all the competitors in a particular contest or sporting event

6. 6

   all of the horses in a particular horse race

7. 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

   the set of all rational numbers is a field

8. 8

   (computer science) a set of one or more adjacent characters comprising a unit of information

9. 9

   a region where a battle is being (or has been) fought

   they made a tour of Civil War battlefields

10. 10

    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

11. 11

    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

12. 12

    a piece of land cleared of trees and usually enclosed

    he planted a field of wheat