jointly russian

• сообща́

  together, jointly

• совме́стно

  in common, jointly, in conference, in cooperation

• коллегиа́льно

  collectively, jointly

• сли́тно

  coherently, cohesively, jointly, conjointly

  joined-up (writing), (written) together / as one, merged

• совоку́пно

  (outdated) jointly or together

• солида́рно

  jointly

Examples

• Они совместно рабо́тали над э́тим прое́ктом.They worked jointly on this project.
• Они совместно труди́лись над э́тим прое́ктом.They worked jointly on this project.
• Они рабо́тали сообща над э́тим прое́ктом.They worked jointly on this project.
• Ло́гика и здра́вый смысл подска́зывают, что Россия, Европе́йский сою́з и США до́лжны де́йствовать вместе.Logic and common sense suggest that Russia, the European Union, and the United States must act jointly.