低
dī
A low doorway, a low price, a lowered head
The picture A mark settling close to the floor, staying below eye level. 低 has the mark settling near the floor; 高 has it climbing up.
Where the picture shows up in 低
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a door frame settles
小心，这个门很低。
xiǎo xīn, zhè ge mén hěn dī.
Careful, this doorway is low.
A frame at forehead height, forcing a duck of the head to pass
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a price mark settles
这家的价格比别家低。
zhè jiā de jià gé bǐ bié jiā dī.
This place is cheaper than the others.
Two price tags side by side, one number a digit shorter
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a head settles
他低着头，一句话也不说。
tā dī zhe tóu, yí jù huà yě bù shuō.
He kept his head down and didn't say a word.
A chin dropped almost to the chest, eyes fixed on the floor
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lowering the volume mark
请把电视的声音放低一点。
qǐng bǎ diàn shì de shēng yīn fàng dī yì diǎn.
Could you turn the TV down a bit?
A remote pressed, the volume bar shortening notch by notch
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a temperature mark settles
今天气温很低，多穿一件。
jīn tiān qì wēn hěn dī, duō chuān yí jiàn.
It's cold today — wear one more layer.
The red line in a thermometer sliding down and stopping near the bottom
All of it in one picture
低 is one mark settling toward the floor. Settle a door frame and you knock your head; settle a price and it's cheap; settle a head and it's bowed; settle the volume and the TV quietens; settle the temperature and the day is cold.