noun

• An obligation, debt or responsibility owed to someone.
• (accounting) Any item recorded on the right-hand side of a balance sheet.
• A handicap that holds something back, a drawback, someone or something that is a burden to whoever is required to take care of them; an individual or action that exposes others to greater risk.
• (informal, mildly derogatory) A person on a team that is more of a hindrance than a help.
• The likelihood of something happening.
• The condition of being susceptible to something.