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Plural of Mouse
The Quick Answer
The plural of "mouse" is "mice." The plural of "computer mouse" is "computer mice" or "computer mouses."The Plural of Mouse
The plural of "mouse" is "mice."- Domestic mice sold as pets often differ substantially in size from the common house mouse.
- Mice and rats have the same organs in the same places, with the difference of size.
Be aware that the plural of "computer mouse" can be "computer mice" or "computer mouses," but "computer mice" is far more popular (evidence).
Table of Contents
- Are You Good at Plurals?
- The Standard Rules for Forming the Plurals
- Why Is There Confusion over the Plural of Mouse?
- Ready for the Test?

Are You Good at Plurals?
Here's a quick test.The Standard Rules for Forming the Plurals
The table below shows the standard rules for forming the plurals of nouns in English.Type | Example of Type | Forming the Plural | Plural |
---|---|---|---|
Most Nouns | ![]() ![]() |
add s | ![]() ![]() |
Noun Ending s, sh, ch, x or z | ![]() ![]() |
add es | ![]() ![]() |
Nouns ending [consonant] o | ![]() ![]() ![]() |
add either s or es (There are no rules for this - you have to know.) |
![]() ![]() ![]() |
Nouns ending [vowel] o | ![]() ![]() |
add s | ![]() ![]() |
Nouns ending [consonant] y | ![]() ![]() |
change the y to an i and add es | ![]() ![]() |
Nouns ending [vowel] y | ![]() ![]() ![]() |
add s | ![]() ![]() |
Nouns ending f or fe | ![]() ![]() |
ves and/or s (There are no rules - you have to know.) |
![]() ![]() |
Exceptions | ![]() ![]() |
some nouns undergo a vowel or letters change | ![]() ![]() |
More exceptions | ![]() ![]() |
some nouns do not change at all | ![]() ![]() |
Why Is There Confusion over the Plural of Mouse?
There is confusion because some nouns become different words when they're made plural (usually due to a letter change). There are no easy ways to remember these plurals. They have to be memorized.Ready for the Test?
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