Hello, fellas. In this session we will discuss several common expressions using other. Forms of other can be used as adjectives or pronouns. Furthermore, there are also common expressions with other carrying different meanings.
1) each other and one another
each other and one another show a reciprocal relationship. They are interchangeable because there is no difference between them.
E.g. We respect each other.
We respect one another.
In both examples above, I respect him or her, and he or she respects me.
2) every other
every other means “alternate”.
E.g. I read every other line. (I read the first line. I do not read the second line. I read the third line. I do not read the fourth line)
3) the other
the other can be found in time expressions like the other day, the other week, etc., to indicate the recent past.
E.g. We saw her the other day.
the other day in the example carries the meaning of “a few days ago, not long ago”.
4) one after the other and one after another
The two expressions show that separate actions take place very close in time.
E.g. They arrived one after the other.
They arrived one after another.
5) other than
It is frequently used in negative sentences and has the same meaning as “except”.
E.g. No one understands the lesson other than James.
No one understands the lesson except (for) James.
6) in other words
in other words is used to explain the meaning of the previous sentence(s).
E.g. IELTS assesses our ability to listen, read, write and speak. In other words, IELTS is a comprehensive test.
Betty Schrampfer Azar, Understanding and Using English Grammar: Third Edition