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I found the following example sentence in my dictionary.

> 川沿いに歩く。Walk along a river.

I looked it up and found out that 川沿い is a noun. Then に should be a particle.
But here clearly it doesn’t indicate the location of existence or the
direction of motion. So what usage of に is this?
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2021-04-04T10:04:22.183
85953
2021-04-04T10:29:26.073
38770
question
grammar particles particle-に
What does に mean as in 川沿いに歩く?
The phrase A沿いにB means "do B along A". It's commonly used with rivers, railway
tracks, roads, anything long.
CC BY-SA 4.0
2021-04-04T10:29:26.073
85955
2021-04-04T10:29:26.073
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85953
answer