"riska" is probably misspelled. Trying risk instead Definition of risk
risk has definitions from the field of statistics
1
[ verb ] expose to a chance of loss or damage

Examples

"We risked losing a lot of money in this venture" "Why risk your life?"

2
[ noun ] a source of danger; a possibility of incurring loss or misfortune

Synonyms

hazard jeopardy peril

Examples

"drinking alcohol is a health hazard"

3
[ noun ] a venture undertaken without regard to possible loss or injury

Synonyms

danger peril

Examples

"he saw the rewards but not the risks of crime" "there was a danger he would do the wrong thing"

4
[ verb ] take a risk in the hope of a favorable outcome

Examples

"When you buy these stocks you are gambling"

5
[ noun ] (statistics) the probability of becoming infected given that exposure to an infectious agent has occurred
6
[ noun ] Last name, frequency rank in the U.S. is 16754
7
[ noun ] (statistics) the probability of being exposed to an infectious agent

Synonyms

risk_of_exposure

*