I wish there was an "I'm not sure" option.
I've never seen two cats that sat and talked to eat other. Mine are never vocal with one another. They understand each other fine, but they don't talk. It's more body language (or possible telepathic communication
) than spoken "language".
However, with human, yes, cats can communicate in small sentances. They can also learn to connect human vocal sounds with action and things. They don't understand what "food" means, but they equate that sound with their food. Our last cat was the best. She understood a lot of our sounds. "Mommy's home", "Get down", "Come see", "Time for bed", "It's dead" (used for when she was afraid of something), "Want some?", "What do you want?"... etc. The list went on and on. The three I have now understand "Wodesorel's home" (I ain't using my real name), "lunchtime", "Time to eat", and "Mom's home". They'll eventually learn more.
I also have learned my cat's vocal sounds. "He's bothering me", "I'm hungry", "Come love me", "You have to follow me", "Please?", "I want some", etc. Each of my three use different sounds to communicate the same idea, but they use the same sounds each time. There are still some sounds/phrases they use constantly in trying to get across an idea, but I have yet to learn what they mean.