Container, Vessel, Tool
Big products need to be put in a big container. A small container just won’t do. These products are big and they need a big container to be contained in.
Imagine having all these big products. How will you contain them all!? Imagine yourself stuffing all of these big products into their respective containers.
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うつわ
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Once you get the big products into a container, you then lock it with a key (き). You wouldn’t want these products to bust out of their containers, so it’s best to lock them up with a key.
Imagine the size of these big keys you have to use to lock these containers. It’s a really big key. Picture yourself straining to turn the key in the lock.