central role
noun phraseUK /ˈsɛntrəl rəʊl/
US /ˈsɛntrəl roʊl/
The most important part that someone or something plays in a group or activity.
She played a central role in organizing the school play.
RELATED WORDS
OTHER MEANINGS
2. The main character's part in a story or film.
The actor took on the central role in the new movie.
3. A job or position that is essential to how something works.
Engineers have a central role in building safe bridges.
4. The middle or most active position within a system or organization.
The heart has a central role in the body's blood flow.