Talking may be a more sophisticated way than meowing but cats have their own emotions and ways of showing 'language'.
Hissing- 'I'm not pleased!', 'Leave me alone!', 'Get out!'
Growling- 'No!', 'Don't!' 'Stop it!'
Spitting- 'Yuck!', 'No!', 'So what!'
Scratching- 'Go away!', 'Leave me alone!', 'No! Not yet', 'Rrr!'
Purring- 'My pleasure', 'Of course', 'I love you.'
Rubbing- 'Mine', 'I love you.'
Meowing- 'Doing fine,' 'May I?', 'Go ahead', 'Welcome.'
Rolling- 'Lovely day', 'Feeling quite fine!', 'Today's the best day!'
Stretching- 'I really want to go outside', 'And today is the time to face a new day!', 'Wakey, Wakey!'
Wailing- 'Don't!', 'No! Not yet!', 'W-why?!', 'Ow!'
Choking- 'I don't like it!', 'Stop it!', 'Don't do it!'
Fleeing- 'Leave me alone!', 'You win... Please stop!', 'No!'
Jumping- 'Eep!', 'Don't!', 'Rrr.'
Flicking (Ear)- 'Hmm', 'What is that I hear?', 'I wonder whats going on.'
Yawning- 'Bored', 'Nap time', 'Hmm.'
Staring- 'What's that', 'So...'
Stalking- 'Dinner's right there', 'Better get this done and over with', 'I'm wondering.'
Flicking (Tail)- 'Everyday is the same', 'La-la-la.'
Sneeze- 'Achoo', 'Yuck!', 'I'm cold.'