Thanks for your reply, unfortunatelly it doesn’t work.
I’ve found the solution: that word is coming from the plugin Unyson which Jevelin uses the portfolio feature.
I had to change it on its language file at: wp-content\plugins\unyson\languages\fw.pot as creating the files fw-it_IT.po and .mo didn’t work.
Not the best solution, but for now it works.
Would be nice if you can set up on your there an option overriding that word.
Solution for this topic
You can also change it using any of the following plugins.