It's actually not a nOOb question. It's a pertinent question, that I may just answer incorrectly.
The 'voices' in the wavetable engine are virtual stacked voices that can be detuned to give you a bigger feel. Arturia even lets you push those virtual wavetable 'voices' to either side of the stereo field. They are all copies of the same single waveform that is active though. This all takes cpu.. and is subject to taste, for different timbres - so adjust to taste.
The voices on the Analog side, are more traditional. A voice = an oscillator. You have three for the Engine. You can detune these slightly, to get chorusing / big effect too. Since you can make both Engine1 and Engine2 an Analog engine -- you can potentially detune 6 of the Pigment analog oscillators to create a wider sound.
There is a whole boatload of other things you can do in Pigments to widen up sound, well beyond detuning.