My jack russell can pretty much understand the spoken word and has different barks/noises depending on what’s going on..
1. The postmans here
2. A strange car is here
3. There is a fox, stoat, squirrel about
4. Farmer Frank is about and I hate him
5. I want to be back in the house
Understands “watch out” “quick pee” “bed” “schmako” “your in the shit” however “sit” elicits a blank stare and “come here” is ignored. My missus think he is dumb as a post , I on the other hand am not sure