'Another' is a combination of the article 'an' and 'other'. An + other = another So 'another' means ONE OTHER. We use it with singular countable indefinite nouns, in just the same way as we use the 'a' or 'an'. Singular countable indefinite = another book In all other cases, we use 'other': Singular countable definite = the other book, my other book, Plural = other books Uncountable = other information Just remember that 'another' means ONE other. That's all you need to know.

another = an other (singular) other (singular or plural) Both are adjectives but their usages are slightly different. Give me another piece of candy. Let's help one another. Is there another way? Are there other kinds of candy? Let's help each other. What other way is there?

other = es como diferente another = es como un más pero "another" es a veces como diferentes I apologize my Spanish is not very good. Other almost always means something that is different and another can mean something that is different but also 1 more of something. other can also be used like "Other than that...", "Aside from that..." "Aparte de eso..."