Unison Mode On Synths

I have been trying to get some more info on the unison mode in synthesizers. I’m not sure if I understand it correctly. Is it like enhancing your stereo image like width does whith fasing the sound or is there more to it?

don’t know it exactly, someone else might know more, but as far as i know unison is a kind of chorus:
the plugin just makes several copies of the voice played and plays them along with the original tone but altered a little bit in pitch, phase offset, etc…

yes, Sqeetz is right: as far as I knot, the unison mode works just like this