广
guǎng
A roof with its front wide open — so people come and go
The picture A large cover leaning on a single post, the whole front side standing wide open. 广 is a cover open at the front for coming and going; 宀 is a roof closed on every side.
Where the picture shows up in 广
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open ground with no walls
孩子们在广场上玩。
háizimen zài guǎngchǎng shàng wán
The kids are playing out on the square.
Children running across a wide open floor with not one wall on it
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a bay open at the front
这家店九点开门。
zhè jiā diàn jiǔ diǎn kāimén
This shop opens at nine.
A shutter rolling up and customers walking in through the open front
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a surface spread under cover
我刚起床，等我一下。
wǒ gāng qǐchuáng, děng wǒ yíxià
I just got up — give me a minute.
Someone pushing up off a wide flat surface laid out under the cover
起床 is to raise your body off that surface — the bed itself is 床.
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one person's share of the space
您的座位在那边。
nín de zuòwèi zài nàbiān
Your seat is over there.
A hand pointing out one numbered spot inside a wide hall
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a place things are stacked under cover
东西都放在仓库里。
dōngxi dōu fàng zài cāngkù lǐ
We've put everything in the warehouse.
Boxes stacked to the rafters inside a bay that is all roof and no walls
库 was the bay where carts were kept — 车 is still sitting inside it.
All of it in one picture
广 is a wide cover with its front open. Take the walls away entirely and you get the square where everyone gathers; leave only the front open and you get a shop customers walk into. Spread a flat surface under the cover and it is a bed; cut out one person's share of it and it is a seat; pile goods under it and it is a warehouse. So a character carrying 广 is talking about a place broadly covered but never sealed.