Uncountable:
* General meaning: When referring to the importance or weight of something, "significance" is uncountable.
* Example: "The study found no significance in the results."
Countable:
* Specific instances: When referring to individual instances of importance, "significance" can be countable.
* Example: "There were several significances to the meeting."
Here, "significances" refers to multiple individual points of importance that were discussed at the meeting.
In summary:
* Uncountable: "The significance of the discovery"
* Countable: "The meeting had many significances."
Pay attention to the context to determine whether "significance" is being used in a countable or uncountable way.