It typically refers to:
* Looking into or examining something using a specialized instrument. For example, "colonoscopy" means looking into the colon using a colonoscope.
* Using a visual instrument to examine the interior of a cavity or organ. For example, "bronchoscopy" means examining the bronchi using a bronchoscope.
Here are some examples of words using the suffix "-oscopy":
* Endoscopy: Visual examination of the inside of a hollow organ or cavity.
* Colonoscopy: Visual examination of the colon.
* Arthroscopy: Visual examination of a joint.
* Laparoscopy: Visual examination of the abdomen.
* Otoscopy: Visual examination of the ear.
* Laryngoscopy: Visual examination of the larynx.
* Bronchoscopy: Visual examination of the bronchi.
The suffix "-oscopy" is often used in medical terminology, but it can also be found in other fields, such as engineering and technology.