Why does my cat meow but make no sound?

A cat may meow without making a sound due to a condition called silent meowing, which can be caused by issues with the cat's vocal cords or larynx. It could also be a behavioral response to stress, excitement, or simply a way for the cat to communicate without vocalizing. If your cat is meowing silently, it may be worth consulting a veterinarian to rule out any underlying health concerns.