Rechercher
certainly
01
certainement
in an assured manner, leaving no room for doubt
02
certainement
used to show that one completely agrees with something
Exemple
We've certainly had some problems but I think, in the end, it will all come out in the wash.
She was not the most homely woman in the world, but she was certainly not beautiful.
Certainly, here are the examples rephrased: Separable: After working for six months, we eventually wrote off the project as a non-starter.