Here are some examples of words using "-opsy":
* Biopsy: The process of removing tissue from a living organism for examination.
* Colonoscopy: The process of examining the colon using a flexible tube with a camera.
* Endoscopy: The process of examining the inside of a hollow organ using a flexible tube with a camera.
* Laparoscopy: The process of examining the abdomen using a small incision and a laparoscope (a thin, lighted tube).
* Necropsy: The process of examining a dead body to determine the cause of death.
Essentially, "-opsy" indicates a medical procedure that involves visual examination.