• WordNet 3.6
    • n ballpark a facility in which ball games are played (especially baseball games) "take me out to the ballpark"
    • n ballpark near to the scope or range of something "his answer wasn't even in the right ballpark"
    • ***


  • Walter Lippmann
    “Private property was the original source of freedom. It still is its main ballpark.”


Ballpark figure - A ballpark figure is a rough or approximate number (guesstimate) to give a general idea of something, like a rough estimate for a cost, etc.
In the ballpark - This means that something is close to the adequate or required value.


In literature:

So I decided to take a flier that maybe four years and change was in the ballpark.
"Syndrome" by Thomas Hoover

In news:

It will be my first time in the new ballpark, and I'm excited, but there is one little thing I'm a bit worried about.
Another of destiny's darlings await the Rangers in the American League wild-card knockout game on Friday night at Rangers Ballpark in Arlington.
Joe DiMaggio, unquestionably one of the great baseball legends of all time, now plays in the big ballpark in the sky.
New conceptual plan of Downtown ballpark.
O'Grady: Ballpark lease 'not acceptable ,' just a starting point.
As the StarNews first reported, the first draft of a ballpark lease agreement has some Wilmington City Council members scoffing at the deal.
Like the rest of the Detroit Tigers, second baseman Ramon Santiago packed his bags Saturday night in the visitors clubhouse at Rangers Ballpark for the last time this season.
El Paso could soon have a new downtown ballpark similar to Aces Stadium in Reno, Nevada.
Cardinals ballpark village groundbreaking anticipated in mid-November.
The team, which will be comprised of players from the Southeast, will hold a regional for Area Code on Sunday, June 10, at Nationals Ballpark in Washington, D.C. April 26th Edition.
Tonight Ivan 'Pudge' Rodriguez will most likely break Carlton Fisk's record for major league games as a catcher, and he will do it in the ballpark where he made his name.
Dusty Baker walked down the hallway in his former ballpark to cheers from Giants fans.
SAN FRANCISCO (AP) — Dusty Baker walked down the hallway in his former ballpark to cheers from Giants fans.
SAN FRANCISCO — Dusty Baker walked down the hallway in his former ballpark to cheers from Giants fans.
In 50 years, more than 176 million fans have entered the turnstiles at Dodger Stadium, the mid-century modern ballpark nestled in Los Angeles's Chavez Ravine.

In science:

Energy resolution in this detector is expected to be extremely good and at energies relevant for the neutrino factory it is believed to be in the ballpark of σE ∼ 0.03qE (GeV) Therefore, at energies relevant for DSNB, one can assume that the energy reconstruction could be almost perfect.
Effect of Collective Flavor Oscillations on the Diffuse Supernova Neutrino Background
As discussed above, this maximal energy lies in the correct ballpark for accelerating nuclei to ultra-high energies.
Anisotropy vs chemical composition at ultra-high energies
Indeed, “B’s Ballpark Museum” may n ot be a major attraction, yet John, being a baseball fan, is likely to enjoy a visit to it.
SocialScope: Enabling Information Discovery on Social Content Sites
Generally they entail proton-beam power in the ballpark of 4 MW — over a reasonable range in proton-beam kinetic energy (roughly 2 –20 GeV), production of pions (of the few-hundred-MeV energies which efficiently yield ionization-coolable muons) is approximately a function of beam power-on-target only [9, 44].
Muon Cooling and Future Muon Facilities: The Coming Decade
ACP (b → sγ ) in the ballpark of 2% − 6%, that is roughly by an order of magnitude larger than its SM value.
Messages on Flavour Physics Beyond the Standard Model