noun

"Cancer is a disease that happens when some of the cells in your body start to grow too much and don't stop growing like they're supposed to. These cells can also start to spread to other parts of your body where they're not supposed to be.

Example

1. Cancer is a disease caused by abnormal cell growth in the body.
2. There are different types of cancer, such as lung cancer, breast cancer, and skin cancer.
3. Treatment for cancer can include surgery, radiation therapy, and chemotherapy.