No. 6,515 in Russian
co
In Russian, "co" itself is not a word.
In a sentence
Мы решали задачу совместно.
We were solving the problem together.
The usage of 'co(-)' here implies cooperation or doing an activity together.
Компания создала новый продукт.
The company created a new product.
Here, 'co(-)' appears as a prefix in 'создала' (created) to indicate the initiation or coming together to form something.
Со мной поехал мой друг.
My friend went with me.
In this sentence, 'со' is a preposition that means 'with'.
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