"All hands on deck" is an idiom that means everyone needs to help out and contribute. There are many synonyms for this phrase such as full steam ahead, pulling together, team effort, rallying the troops, everyone pitching in, united front, working as a group, collective effort, joint effort, and collaborative action. These phrases suggest the idea of teamwork and emphasize the importance of everyone's involvement in reaching a goal. Whether it is a crisis, an urgent situation, or a routine task, using synonyms for "all hands on deck" can communicate the urgency and importance of the task at hand and encourage people to work together for a common goal.