amphitheater

noun

am·​phi·​the·​ater ˈam(p)-fə-ˌthē(-ə)-tər 

 also  ˈam-pə-ˌthē-

1

: an oval or circular building with rising tiers of seats ranged about an open space and used in ancient Rome especially for contests and spectacles

2

a

: a very large auditorium

b

: a room with a gallery from which doctors and students may observe surgical operations

c

: a rising gallery in a modern theater

d

: a flat or gently sloping area surrounded by abrupt slopes

3

: a place of public entertainment (as for games or concerts)

amphitheatric

ˌam(p)-fə-thē-ˈa-trik 

 also  ˌam-pə-thē-

adjective

or amphitheatrical

ˌam(p)-fə-thē-ˈa-tri-kəl 

 also  ˌam-pə-thē-

amphitheatrically

ˌam(p)-fə-thē-ˈa-tri-k(ə-)lē 

 also  ˌam-pə-thē-

adverb

Synonyms

• arena
• auditorium
• garden
• hall
• theater
• theatre

Examples of amphitheater in a Sentence

the conference attendees crowded into the amphitheater for the keynote address

Recent Examples on the Web

Gather around the campfire in Chino Hills Join a Chino Hills State Park interpreter from 4 to 5 p.m. Saturday at the amphitheater at the Rolling M Ranch campground for a campfire, songs and treats. —Jaclyn Cosgrove, Los Angeles Times, 3 Apr. 2025

Visit the community booths to learn about sustainable actions such as electrifying your home and starting a compost, and enjoy live entertainment at the amphitheater in the redwood grove. —Anne Gelhaus, The Mercury News, 16 Mar. 2025

Main events include performances by multiple bands and headliner Night Ranger at the amphitheater on Old School Square (8 p.m. Friday) and, on the same stage, Live & Let Die: A Symphonic Tribute to Paul McCartney (8 p.m. Saturday). —Ben Crandell, Sun Sentinel, 6 Mar. 2025

Pantera announced the dates for an extensive 2025 U.S. summer amphitheater tour on Monday (Feb. 24), with plans to hit 29 cities from July through September. —Gil Kaufman, Billboard, 24 Feb. 2025

Word History

Etymology

Middle English amphitheatre, borrowed from Latin amphitheātrum, borrowed from Greek amphithéātron, noun derivative from neuter of amphithéātros "(of a stadium) having seats for spectators all around," from amphi- amphi- + -theātros, derivative of théātron "place for viewing a drama, theater entry 1"

Note: The term is also used in isolated, partially naturalized Old English attestations, as anfiteatrum and anfiteatra.

First Known Use

14th century, in the meaning defined at sense 1

Rhymes for amphitheater

• galvanometer
• submillimeter
• aliter
• ammeter
• completer
• demeter
• preheater
• repeater
• saltpetre
• ureter
• beater
• cheater

Kids Definition

amphitheater

noun

am·​phi·​the·​a·​ter

ˈam(p)-fə-ˌthē-ət-ər

1

: a building with seats rising in curved rows around an open space on which games and plays take place

2

: something (as a piece of level ground surrounded by hills) that resembles an amphitheater