Answer:
The animals in Animal Farm refer to each other as "comrades" because all of them shared a common goal and were a member of farm animals.
Step-by-step explanation:
Animal Farm is a novel authored by George Orwell. The story depicts how a group of farm animals revolt against the framer. The one who inspired other animals to rebel the farmer was the Old Major who was the oldest pig on the farm.
While addressing the fellow animals, the Old Major referred them as ‘comrades.’ Comrades are the companions who share common goals and activities. All the farm animals was having a common goal which was to rebel their human farmer, and which is why later all of them started addressing each other as comrades because they were all follow revolutionaries.