Five kittens or five kittens, which is correct? - briefly
The phrase "five kittens" is grammatically correct and commonly used in English. Adding another "kittens" at the end would be redundant and incorrect.
Five kittens or five kittens, which is correct? - in detail
The choice between "five kittens" and "five kittens" depends on the context in which the phrase is used. If you are referring to a specific group of five kittens that have been previously mentioned or identified, it is appropriate to use "the." For example, "The five kittens are playing in the yard." In this case, "the" indicates that the speaker and listener both know which five kittens are being referred to.
On the other hand, if you are introducing a new group of kittens or referring to kittens in general, it is more appropriate to use "five." For example, "Five kittens were born this morning." In this sentence, using "the" would imply that the speaker and listener already know which five kittens are being referred to, which may not be the case.
In summary, the use of "the" or no article depends on whether the kittens have been previously identified or not. It is important to consider the context in order to make the correct choice between "five kittens" and "five kittens."