Anecdotally, my cat's definitely know the word "Greenies" for their favorite treats. Fairly recently, I was calling one who was napping to let her know I was a

Anecdotally, my cat's definitely know the word "Greenies" for their favorite treats. Fairly recently, I was calling one who was napping to let her know I was about to dispense them. She woke up, lifted her head, perked her ears and watched me when I called her name. She was clearly paying attention but not moving from her spot. Then I said the magic word and the reaction was startlingly immediate - she leapt up and ran right to me, then followed until I got them out and poured some out.