1) Approximate 2) Arena 3) Bowl 4) Comiskey or Fenway 5) Diamond setting 6) Exclusively Saxon word 7) Exclusively Anglo word 8) Fenway or Wrigley 9) Golf course 10) Like some figures 11) Park 12) Roughly estimated 13) Sports stadium 14) Stadium 15) Type of figure 16) Word with Anglo-Saxon origins 17) Word of purely Anglo origin 1) Approximate 2) Arena 3) Estimated 4) Shea 
[n] - a facility in which ball games are played (especially baseball games)
park noun a facility in which ball games are played (especially baseball games); `take me out to the ballpark`