Definition of onstage
: on or onto a stage : on a part of the stage visible to the audience
First Known Use of onstage
ONSTAGE Defined for English Language Learners
Definition of onstage for English Language Learners
: on or onto a stage and in front of an audience
Seen and Heard
What made you want to look up onstage? Please tell us where you read or heard it (including the quote, if possible).