in a clear, plain, and uncomplicated way
The teacher explained fractions simply so even the younger students understood.
If you mix red and blue paint, they simply make purple.
used to emphasize that something is absolutely or truly the case
That sunset is simply beautiful.
Your idea is simply brilliant!
only; merely; nothing more than
He’s not angry; he’s simply tired.
This toolbox is simply a gift for Dad, nothing fancy.