The character “noon” 午 is seen as a mortar 午 that stands upright under the vertical sun in the container 凵 at noon. So this combination means: container 缶.
Is understood as a flat version of: 人 - Other radicals with 'person' are: sitting 匕, sitting cross-legged 夂, kneeling ⺈, skilled 才, bending マ,卩, slumped 㔾 or husband 夫
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, can opener 十 and a can 凵 (At the introduction of the metal cans this kanji was selected because it fits phonetically)
