arena (n.)

• ambit
• amphitheater
• area
• art
• auditorium
• back
• backdrop
• background
• bailiwick
• beat
• border
• borderland
• chapel
• cincture
• circle
• circuit
• circus
• close
• concern
• container
• coop
• court
• courtyard
• curtilage
• demesne
• department
• discipline
• distance
• domain
• dominion
• enclave
• enclosure
• field
• fold
• gallery
• ground
• hall
• hemisphere
• hinterland
• jurisdiction
• list
• locale
• march
• meetinghouse
• ology
• orb
• orbit
• pale
• paling
• park
• pen
• precinct
• province
• quad
• quadrangle
• realm
• rear
• ring
• round
• scene
• science
• setting
• specialty
• sphere
• square
• stadium
• stage
• study
• technics
• technology
• theater
• walk
• yard