Wiktionary
vb. (context idiomatic English) To do something risky.
Usage examples of "take a risk".
At last Rabscuttle suggested that they might take a risk for once in a way and slip across the fields to the edge of the village, where there was a big vegetable garden.
I was not willing to take a risk blindly, but this is another matter.
Who dares take a risk, especially when disbursements are large and returns remote?
If on that forbidding moor a difficult and dangerous quest should lie before us, this was at least a comrade for whom one might venture to take a risk with the certainty that he would bravely share it.
Despite the risk of arrows, the king needed to be seen, and Aosinin and the rest of the royal nobles would not let their cousin take a risk they were unwilling to engage themselves.