noun
synergy
SIN-er-jee/ˈsɪnərdʒi/
A combined effect greater than the sum of separate effects.
Their synergy lets them lift a crate neither woman can lift alone.

Etymology
“Working together” first expressed cooperation, then coordinated action between organs. The selected sense adds a stronger claim: cooperation produces greater effectiveness than separate action.
In context
the Synergy of a well-chosen Inner Circle can significantly amplify a Leader's Effectiveness when the group works harmoniously and each member contributes their unique strengths
More examples
- The synergy between the writer and illustrator makes the story more engaging.
- There is synergy between the two medicines: together, they provide greater relief.
- Sharing delivery routes creates synergies that lower costs for both shops.
Forms
synergy · synergies
synergistic adjective — producing a greater effect through combination
Similar words
- cooperation
- Emphasizes mutual help, without implying a greater combined effect.
- collaboration
- Usually involves shared work on a project, especially creative work.