1. A park or stadium in which ball games are played.
2. Slang The approximately proper range, as of possibilities or alternatives: Your estimate is high, but still in the ballpark.
1. Of, relating to, or used in a park or stadium: ballpark lights; ballpark seating.
2. Slang Being approximately proper in range: gave a ballpark estimate of future unit sales.
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2020 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Indo-European & Semitic Roots Appendices
Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:
The Indo-European appendix covers nearly half of the Indo-European roots that have left their mark on English words. A more complete treatment of Indo-European roots and the English words derived from them is available in our Dictionary of Indo-European Roots.