Yes, risk is a Scrabble word!

Verb

1. Expose to a chance of loss or damage

2. Take a risk in the hope of a favorable outcome

Noun

1. A source of danger; a possibility of incurring loss or misfortune

2. A venture undertaken without regard to possible loss or injury

3. The probability of becoming infected given that exposure to an infectious agent has occurred

4. The probability of being exposed to an infectious agent