The word ‘another’ is primarily classified as a pronoun and an adjective. As a pronoun, it is used to refer to an additional person or thing of the same type as the one previously mentioned. For example, in the sentence ‘Would you like another piece of cake?’, ‘another’ replaces ‘an additional piece of cake’ and serves the function of a pronoun.
As an adjective, ‘another’ describes or modifies a noun, indicating that it is an additional one. For instance, in the phrase ‘I need another pencil’, ‘another’ is functioning as an adjective, specifying which pencil is needed—specifically, an additional one.
In summary, ‘another’ serves dual roles in English, functioning both as a pronoun and as an adjective, depending on its use in a sentence.