Meaning of common cause | Babel Free

Definitions

1. A shared purpose.
   countable, uncountable
2. Used other than figuratively or idiomatically: see common, cause.
   countable, uncountable

Examples

“An open invite has been given to all UK workers to join in common cause with the union, as more than 40,000 RMT members at Network Rail and 13 train operating companies walked out on June 21 in the first of three 24-hour strikes over pay, conditions and job security.”

CEFR level