A house officer is an individual who works in a medical facility, usually in a hospital setting, as a physician or surgeon in training. A few synonyms for the term might include intern, resident, medical officer, or junior doctor. Each of these terms refers to a medical professional in various stages of their training and expertise, with "intern" typically describing someone in their first year of post-medical school training, and "resident" referring to someone who has completed at least one year of training but may still be in the process of completing their specialty. The use of synonyms is helpful when discussing medical staff titles and responsibilities, especially when communicating with patients and their families about who is caring for them.