You use other to refer to an additional thing or person of the same type as one that has been mentioned or is known about.
You use other to indicate that a thing or person is not the one already mentioned, but a different one.
You use the other to refer to the second of two things or people when the identity of the first is already known or understood, or has already been mentioned.
You use other at the end of a list or a group of examples, to refer generally to people or things like the ones just mentioned.
You use the other to refer to the rest of the people or things in a group, when you are talking about one particular person or thing.
Other people are people in general, as opposed to yourself or a person you have already mentioned.
You use other in informal expressions of time such as the other day ,the other evening, or the other week to refer to a day, evening, or week in the recent past.
You use expressions like among other things or among others to indicate that there are several more facts, things, or people like the one or ones mentioned, but that you do not intend to mention them all.
If something happens, for example, every other day or every other month, there is a day or month when it does not happen between each day or month when it happens.
You use every other to emphasize that you are referring to all the rest of the people or things in a group.
You use none other than and no other than to emphasize the name of a person or thing when something about that person or thing is surprising in a particular situation.
You use nothing other than and no other than when you are going to mention a course of action, decision, or description and emphasize that it is the only one possible in the situation.
You use or other in expressions like somehow or other and someone or other to indicate that you cannot or do not want to be more precise about the information that you are giving.
You use other than after a negative statement to say that the person, item, or thing that follows is the only exception to the statement.
15. each other -> see each
your other half -> see half
one after the other -> see one
one or other -> see one;that and the other
this -> see this
in other words -> see word