- A day set aside for sports or athletic competition. (noun)
- An outdoor meeting, social event, or festivity. (noun)
- A day for military exercises, maneuvers, or display. (noun)
- Informal A time of great pleasure, activity, or opportunity: The media had a field day with the sensational story. (noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.