Word forms: plural black spots
1. countable noun
If you describe a place, time, or part of a situation as a black spot, you mean that it is particularly bad or likely to cause problems. [British]
⇒ There are recognised black spots in marriages which can lead to trouble.
⇒ Gainsborough is known as an unemployment blackspot.
2. countable noun
A black spot is a place on a road where accidents often happen. [British]
⇒ The accident happened on a notorious black spot on the A43.
COBUILD Advanced English Dictionary. Copyright © HarperCollins Publishers