The term jeopardize (UK jeopardise) means "to place in jeopardy" (to place at risk) -- actions or inactions can risk an unwanted outcome, a loss of benefit, or a poor result.
- One may jeopardize his chance for a promotion by disagreeing with his boss.
- One may jeopardize his safety by not being careful in dangerous situations.
- Having a poor credit rating will jeopardize a person's chance for a loan or mortgage approval.
- Eating unhealthy foods can jeopardize your physical well-being.