each other
pronoun
reciprocal, traditionally for two
“The twins help each other.”
Grammar choices
each other vs one another
Traditional advice uses each other for two people and one another for more than two. Modern usage treats them as interchangeable.
one another
pronoun
reciprocal, traditionally for three or more
“The team members support one another.”
Try it: which word fits?
Drop each word into the blank. The explanation tells you why one works and the other doesn't.
The two rivals avoided ______.
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Questions about each other vs one another
What is the difference between each other and one another?
Traditional advice uses each other for two people and one another for more than two. Modern usage treats them as interchangeable.
How do I remember each other vs one another?
Each other: two (both short). One another: a crowd.
Are there exceptions?
Merriam-Webster and Garner note that the two-versus-many rule is not borne out by historical usage. Following it is still a safe choice in formal writing.
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