Can you define Architecture for a free postcard?

Dear Postcrossers:

I posted this question before and got some great response. I’m hoping to get more.
If you are interested please PM.

I’m reaching out to architecture enthusiasts for help. My topic: What is architecture?
I will mail you two cards: one is the card with the question and my mailing address (see below) and the second will be a gift for you. The definition (cultural, social, economic, environmental, aesthetic, structural, etc) can be as deep as possible or as silly as you like. I’m really interested in all responses.

For those of you who already responded, THANK YOU. I really appreciate it.

Best,
Sir Icon.

I’d love to participate :blush:

All, this is still open.
Please PM if you’re interested. Im looking to get as many responses as possible.