My significant other ate cucumbers and onion with some ranch. I called it a cucumber onion salad. She says there aren’t enough ingredients to call it a salad, because “it takes multiple ingredients”. I pointed out she had three and asked what the minimum is. She refuses to answer so I ask Lemmy.
I think this is one of those words / concepts where one needs to invoke Wittgenstein’s “family resemblance” idea. You’re not going to find some exact set of criteria that define what people do and don’t consider a salad. They instead have a “family resemblance”.
Your probably idea is not a bad way of describing how that works.