Does Brand have a branding problem?

I've been seeing and collating definitions of Brand recently:

😶 'It’s not what you say it is, it’s what they say it is'
🧠 'Real estate in someone’s mind'
🥰 'A person's gut feeling about an organisation'
🌍 'The real-world expression of strategy'

Are some of the classics. Here are more poetic versions:

⏳ 'A promise performed over time'
🪢 'Beliefs turned into a system of experiences'
🎨 ‘The sum of expressions by which an entity intends to be recognised’
🎓 'Teaching people how to think about you'
🚀 'A vessel through which we interact with a promise'

...and I've also found some drawn out definitions too:

👨‍👨‍👦 'Belief systems that attract communities who share your beliefs and are persistent advocates for your intention, purpose and life experience'
📚 'Stories that become a shorthand to meaning, with experiences as the vehicle to making them real'
🏭 'The process of giving a meaning to specific organisation, company, products or services by creating and shaping a brand in consumers' minds'
💰 ‘A name, term, design, symbol or any other feature that identifies one seller’s goods or service as distinct from those of other sellers’

While the most succinct I’ve seen so far:

↕️ 'Differentiation', from Leland Maschmeyer at WebSummit earlier this year.

Then I asked my Mom what she thought, and she just started listing a bunch of brand names. With so many definitions that make sense to the brand specialists in the room — but not a single one that seems to be the defacto version — there's clearly work to do to make it easier for the non-specialists to understand as well. These people can be CEOs and founders, just as often as it is our Moms. What's the easiest-to-get definition for those people?

Contrasting terminology between industry, agency and practitioner seems to be the norm. More often than not it's the source of disagreement and tension when we attempt to collaborate across company lines. Just like in any relationship, if two people's definition of the same thing differs, a potential argument beckons.

Which begs the question... does Brand have a branding problem?