The noun 'laughter' is an uncountable noun. Units of laughter are expressed in amounts such as some laughter, a lot of laughter, much laughter, etc.
Transport is both countable and uncountable as a noun.
countable
uncountable
Uncountable
The gerund painting is a countable noun, as in "There are 12 paintings in this room."
Transport is both countable and uncountable as a noun.
countable
Uncountable
uncountable
uncountable
uncountable
Uncountable
The gerund painting is a countable noun, as in "There are 12 paintings in this room."
Countable
few is countable
countable
The noun 'steel' is an uncountable (mass) noun, a word for a substance.