1.a piece of land cleared of trees and usually enclosed;

he planted a field of wheat

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

they made a tour of Civil War battlefields

3.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

4.a branch of knowledge;

in what discipline is his doctorate?

5.the space around a radiating body within which its electromagnetic oscillations can exert force on another similar body not in contact with it

6.a particular kind of commercial enterprise;

they are outstanding in their field

7.a particular environment or walk of life;

his social sphere is limited

8.a piece of land prepared for playing a game;

the home crowd cheered when Princeton took the field

9.extensive tract of level open land;

they emerged from the woods onto a vast open plain

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;

the set of all rational numbers is a field

11. a region in which active military operations are in progress;

the army was in the field awaiting action

12. all of the horses in a particular horse race

13. all the competitors in a particular contest or sporting event

14. a geographic region (land or sea) under which something valuable is found;

the diamond fields of South Africa

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

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

17. a place where planes take off and land

1.catch or pick up (balls) in baseball or cricket

2.play as a fielder

3.answer adequately or successfully;

The lawyer fielded all questions from the press

4.select (a team or individual player) for a game;

The Patriots fielded a young new quarterback for the Rose Bowl