does dog exist?

The right response to this is to enquire of what is meant by 'dog' ?

There is a coalition of dogs within the universal 'dog', a cadre of puppies.

Or if dog is merely the letter 'd' in close proximity to an 'o' and a 'g', then it resides on the page here and there.

Perhaps you had a particular dog in mind? or perhaps you were looking for the ideal dog? Do we include the ancestral dogs? the primitive doglike animals? do we include statues of dogs? Do the individual organs of a dog constitute "dog"? How many parts of a dog is sufficient to be a complete dog? can we take away one leg and a tail and and ear and still have a dog?

Likewise also, what is the point of 'exist' - exist like a physical being?

There are plenty who go about life as if dogs exist. they build dog houses, they buy dog food, they make pilgrimages to the dog park. We may have never seen their dog, but their actions are real, so the source of their action is a reality also.  Let's not quibble over who or what has actually seen or been 'seen'.

Here is the question of 'exist' for if this means 'i have seen with my two eyes' then lots of things don't exist, atoms don't exist, emotions don't, scents don't.

As you add senses why not add one more - the 'dog' sense, which allows the presence of dog to be felt.

What are we really getting at with 'dog'? What is the whole matter of dogness? Can we really get away from this? Would life be essentially the same without dogs? Do alien civilisations have dogs? Can dogs be gods?