The things and events to which the symbols refer belong to mutually exclusive realms of experience.

The symbol appears in the 2009 version of the standard, and refers to unequal profile distribution.

While reasoning, we might let the symbols refer to those denoted objects, perhaps in a model.

But what the devil did the symbols refer to?

Firefighters in the past also used to wear happi; the symbol on their backs referred to the group with which they were associated.

This symbol refers to Central rate of mortality.

And in any case I haven't the slightest idea of what the symbols refer to.

The two symbols refer to major economic activities of the city, light industry and wine growing.

Two symbols with the same contents will always refer to the same object.

He looked at the legend to one side and saw that the symbol referred to an "Elysium" particle.