amphitheatre

noun

1.
a sloping gallery with seats for spectators (as in an operating room or theater)
amphitheater
Derived from:
amphitheatrical
Exemplifies:
Australian spelling British spelling Canadian spelling
2.
an oval large stadium with tiers of seats; an arena in which contests and spectacles are held
playstow umbewitstow amphitheater coliseum
Derived from:
amphitheatrical
Exemplifies:
Australian spelling British spelling Canadian spelling