When we use the indefinite article an before other, we write it as one word: another. Another means ‘one more’ or ‘an additional or extra’, or ‘an alternative or different’.

Quick Summary: What is the difference between another and other? A simple rule to help you remember the difference between another and other is: another + singular noun other + plural noun others (a pronoun to replace other + plural noun) I need another cup. (cup is singular so we use another) I need other cups. (cups is plural so we use other)

When we use ‘ an ’ before ‘ other ’, we write it as one word: another. Another expresses quantity. It means 'additional' or 'one more'. We use another with singular nouns: another chair, another day.

The primary difference between another and other is that both another and other are determiners, but another precedes singular countable nouns or pronouns. Conversely, other precedes a plural countable as well as uncountable nouns and pronouns.

The biggest difference between these two words is that “another” is always singular and does not describe anything specific. “Other” is used for plural and noncount nouns that are general. We only use “the other” to refer to specific nouns.