1. past tense and past participle of chorus; sang or spoke together in unison
Usage: British spelling variant; American English typically uses 'chorused'

Examples

• The audience chorussed the familiar refrain at the concert.
• All the children chorussed 'Happy Birthday' when the cake arrived.
• The crowd chorussed their approval as the team took the field.
• The actors chorussed their lines in perfect harmony.
• Fans chorussed the team's motto throughout the stadium.