Symbols of Venn Diagrams

Topic:
Diagrams
Thanks to http://tube.geogebra.org/scork for sharing this awesome applet! Venn Diagram Logic - 2 sets

Symbols of Venn Diagrams

Below are 3 new symbols relating to Venn Diagrams. Click on the different boxes to discover what the symbols mean. '

What word could you use to replace ?

What word could you use to replace ?

What word could you use to replace ' ?