Yes, but usually only a few words, not the entire language. Cats are good communicators and can make more than a hundred sounds, ten times more than dogs. They are language experts in the animal world. Moreover, cats have strong learning abilities and their brain structure is the same as that of humans, so it is not surprising that they can remember simple words and speak simple conversations.
Almost all pet cats call "Mom", and they only call it "Mom" to their parents. I have a friend whose cat can say "fish". When asked what he eats, he will say fish. When asked if he can eat food instead of fish, he will keep barking like fish, fish or fish, but he won't say this at other times.
I also saw a cat in Russia who can talk a lot.