1. the state or condition of being hard to accomplish, deal with, or understand
2. a thing that is hard to accomplish, deal with, or understand; a problem or obstacle
3. a situation that causes problems or trouble

Examples

• She had difficulty understanding the math problem.
• The main difficulty with the plan is the cost.
• He overcame many difficulties to achieve his goals.
• The difficulty of the test surprised the students.
• Financial difficulties forced them to sell their house.
• We encountered several difficulties during the project.
• The difficulty lies in finding qualified workers.