'A' / 'An' are called indefinite articles. 'The' is called a definite article. '...' You also need to know when not to use an article. "a city" [si-tē] "a factory" [ˈfak-t(ə-)rē] "a university" [yü-nə-ˈvər-sə-tē] "an apple" [ˈa-pəl] "an elephant" [ˈe-lə-fənt] "an hour" [ˈau̇(-ə)r] This is the recording about the definite article. What is the best way to learn English?