1. A large oval or circular building with tiers of seats rising around a central arena, used in ancient Rome for gladiatorial contests and public spectacles.
Usage: Plural of amphitheatre; Often refers to ancient Roman structures, especially the Colosseum
2. A modern building or venue with tiered seating arranged in a circular or oval pattern, used for performances, lectures, or sporting events.
Usage: Contemporary usage
3. A natural formation or landscape feature with a bowl-like or tiered shape resembling an amphitheatre.
Usage: Geographical or descriptive usage

Examples

• The ancient Romans built amphitheatres throughout their empire to entertain the public.
• The Colosseum is one of the most famous amphitheatres ever constructed.
• Modern amphitheatres host concerts, graduations, and sporting events.
• The university's outdoor amphitheatres provide excellent venues for summer performances.
• The natural amphitheatres formed by the canyon walls created perfect acoustics.
• Tourists flock to see the preserved amphitheatres scattered across Italy and North Africa.
• The new performing arts center includes two state-of-the-art amphitheatres.