The word "essay" is countable, as it refers to a specific piece of writing that can be quantified. You can have one essay, two essays, or multiple essays. In contrast, "essays" as a collective term can be used in an uncountable sense when discussing the genre or form of writing in general, but when referring to individual works, it remains countable.
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
The gerund painting is a countable noun, as in "There are 12 paintings in this room."
few is countable
countable
Countable
The noun 'steel' is an uncountable (mass) noun, a word for a substance.
he asked me if the word fire wood countable or uncountable?
Pasta is a countable noun