1. A temporary military fortification erected in the field.
2. Work done or firsthand observations made in the field as opposed to that done or observed in a controlled environment.
3. The collecting of sociological or anthropological data in the field.
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2018 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
The American Heritage Dictionary Blog
Check out our blog, updated regularly, for new words and revised definitions, interesting images from the 5th edition, discussions of usage, and more.