Bedeutung von “uncountable noun” — Learner’s Dictionary

uncountable noun

noun [ C ] us uk /ʌnˌkaʊntəbəlˈnaʊn/ also uncount noun

B1 a noun that does not have a plural form and cannot be used with 'a' or 'one'. For example 'music' and 'furniture' are uncountable nouns.

(Definition von “uncountable noun” aus dem Cambridge Learner's Dictionary © Cambridge University Press)