What are the differences between other and another

Another means someone or something else. It implies the other one which can be same or different. Other implies someone or something which is not similar to the one previously specified or known. Usually with singular noun, but sometimes with plural noun also.

Explanation:

Another is used with a singular noun and other is used with uncountable and plural nouns:

Example: She’s going to the cinema with another friend.

She’s going to the cinema with other friends.