My dogs all know, "Move!" .... which means go lay down out of the way so we can walk through the house.

They all know, "Hush!" ... although Basil chooses to ignore it sometimes.

Lucky knows the names of several toys, and brings the correct one. "Ball", "Rope", etc.

Georgie knows, "Get your baby!" ... which means that he is getting overly excited and mouthy, and needs to go pick up a stuffed animal and hold it in his mouth until he settles down.

Several of them know, "Where's your boy?", which means go find my son and get him to come to me. Lazy mom, aren't I?