Veganism

[Disagreeable]

When I'm asking what counts as being human I'm asking "which things qualify as being human beings?".

You left open the possibility that the property of being human is what makes it okay to kill and eat animals but not okay to kill and eat humans. I'm asking what makes having that property true.

Common usage of the word human implies that the property of being human exists.  It matters not how that property is determined to be satisfied.  If you aren't abiding by common usage, you are equivocating.

Not abiding by common usage doesn't necessarily entail equivocation. Equivocation involves conflating at least two different ways of defining a word, it isn't merely using a non-standard definition.

There are deeper questions to what something is than merely going by common usage or a mere dictionary definition. Even if being a member of the species homo sapiens, for example, is what it means to be human there are still questions about where we draw the line between being a member of homo sapiens and not being a member of homo sapiens.

But even if we don't ask those questions. We can simply accept that being human is, for example, being a member of the species homo sapiens. If that is what being human is *and* if the property of being human is what makes it not acceptable to kill and eat a creature, and the property of not being human is what makes it acceptable to kill and eat a creature, then this entails that it's acceptable to kill and eat a creature very, very similar to a human that isn't technically of the same species (homo sapiens). So the question then becomes: is that truly acceptable? If not, then we may have to revise our standard of what makes it acceptable/unacceptable to kill and eat a creature.