Which of the following is INCORRECTLY spelled.

The word Liesure is spelled incorrectly. The correct spelling is Leisure.

Here are the words and their correct spellings:

• Mathematics is the study of numbers, shapes, and patterns.
• Accessory is a thing that is added to something else to make it more useful or attractive.
• Leisure is free time that is not spent working or doing other necessary tasks.
• Milestone is a significant event or achievement.