Crossword clue: an oval large stadium with tiers of seats; an arena in which contests and spectacles are held

amphitheater, amphitheatre, coliseum.

The most common answer is amphitheater (12 letters).

3 answers found in Letterora's clue database (Wikidata facts, Open Trivia DB, WordNet and Webster definitions — all licensed sources).

Possible answers

amphitheater 12 letters wn-def

an oval large stadium with tiers of seats; an arena in which contests and spectacles are held

amphitheatre 12 letters wn-def

an oval large stadium with tiers of seats; an arena in which contests and spectacles are held

coliseum 8 letters wn-def

an oval large stadium with tiers of seats; an arena in which contests and spectacles are held