Synergy is when two or more things work together to make a better result than they could alone.
Synergy is a good thing. It means working together to make something better.
Examples:
The team showed great synergy in the game.
The synergy between the two companies made them very successful.
Synergy between the two singers made the song even better.
The synergy between the ingredients made the cake taste amazing.
The synergy between the colors made the painting beautiful.
The synergy between the animals made the zoo a fun place to visit.