Definition of orchestra
1a
: the circular space used by the chorus in front of the proscenium in an ancient Greek theater
b
: a corresponding semicircular space in a Roman theater used for seating important persons
2a
: the space in front of the stage in a modern theater that is used by an orchestra
b
: the forward section of seats on the main floor of a theater
c
: the main floor of a theater
3
: a group of musicians including especially string players organized to perform ensemble music — compare band
Buying Guide
A love for education starts at an early age. The Reviews team researched the best science toys for kids to jumpstart their learning.
Test Your Vocabulary
Commonly Confused Words Quiz
-
- I went to the ______ store to buy a birthday card.

Test your visual vocabulary with our 10-question challenge!
TAKE THE QUIZ
A daily challenge for crossword fanatics.
TAKE THE QUIZLove words? Need even more definitions?
Merriam-Webster unabridged
Share orchestra
Time Traveler for orchestra
The first known use of orchestra was in 1606
See more words from the same year