The noun peril has 3 senses (first 1 from tagged texts)
1. (1) hazard, jeopardy, peril, risk, endangerment -- (a source of danger; a possibility of incurring loss or misfortune; "drinking alcohol is a health hazard")
2. riskiness, peril -- (a state of danger involving risk)
3. risk, peril, danger -- (a venture undertaken without regard to possible loss or injury; "he saw the rewards but not the risks of crime"; "there was a danger he would do the wrong thing")
Overview of verb peril
The verb peril has 2 senses (no senses from tagged texts)
1. endanger, jeopardize, jeopardise, menace, threaten, imperil, peril -- (pose a threat to; present a danger to; "The pollution is endangering the crops")
2. queer, expose, scupper, endanger, peril -- (put in a dangerous, disadvantageous, or difficult position)