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Longman Dictionary of Contemporary English
one another
pronoun
EXAMPLES FROM OTHER ENTRIES
▪ Many witnesses contradicted one another.
EXAMPLES FROM CORPUS
▪ Geschke and Warnock are mirror images of one another, right down to the silver beards.
▪ His mum and I held one another up.
▪ I want them to treat one another with courtesy and respect.
▪ Prisoners tried to sell saucepans to one another.
▪ They had barely greeted one another when Pam demanded to know what Margaret thought she was doing.
▪ They looked at one another like cats across a fence, but they did not speak.
▪ This makes the wings very soft to the touch and probably cuts down noise from feathers moving against one another during flight.
▪ Women ran screaming with children in their arms, and old folk tripped over one another trying to escape the slaughter.
Wiktionary
one another

pron. (context idiomatic reciprocal pronoun English) Used of a reciprocal relationship among a group of two or more people or things; compare each other.

Usage examples of "one another".

But for the moment we shall just have to assume that they do have a language that they use to communicate with one another.

Unlike the peoples of your Earth, many alien civilizations find it difficult to get along with one another.

There were two, no there were three of them, clutching to one another in strange embrace.

But look here, Meister, does that mean we were simply wasting our time trying to kill one another?

Bynars as a race interacted with computers as easily as humans conversed with one another.

He had the orbits on his side, since Mars and the asteroid would be approaching one another all the time he was en route, while Earth would be heading the other way.

A crowd of Bajoran and Cardassian soldiers jostled one another around the spinning wheel, but the risk was too high for Sisko to indulge.

We're so different from one another, and I'd drive you crazy in no time at all.

They're probably all sitting around the living room, talking to one another, having a good time, wishing I was there.

In the five years they had spent together, they had learned one another's language, and they had grown so close that each had become part of the other.

Smith did not stir as they passed his table, chattering to one another.

Besides their ambition and the agendas they kept hidden from one another, they were conquerors in the center of things living off the fruit of their conquest.