The difference between walkin and walkon

Walkin emphasizes the action of walking. Walkon stressed to keep walking.

"Walking in" mainly emphasizes the action of walking into a place. For example, "Walk-inclinic" usually refers to a clinic where people can go directly to see a doctor without making an appointment or waiting. For another example, "walk-in refrigerator" refers to a refrigerator that allows people to walk in and take food directly. "Walk-on" focuses more on the meaning of going on. It is usually used to describe a person or an object continuing to walk on the basis of already walking. For example, "Walk-onrole" refers to a character with only a few lines or no lines in a drama or movie, and usually acts as a background figure in the scene.