Is traffic a count or non count word? I think its non count. And is highway a count or non count word?

Answer 1

traffic is a non count word

highway is a count word.

Answer 2

Is city non count? I think it is
Electricity non count?
Black out non count?

Answer 3

City is a count word. I have visited many cities.

Electricity is a non count word, but black out is a count word.

Answer 4

Can you explain how blackout is a count word

Answer 5

Alicia had a couple of blackouts before she was diagnosed with a seizure disorder.

England had nightly blackouts during WWII.