To "protrude" means to?

To "protrude" means to stick out or extend beyond a surface. This term is often used in contexts where an object extends outward or is noticeable in an arrangement, such as a rock protruding from the ground or a bone protruding through the skin. The essence of the word implies visibility and extension, which aligns perfectly with the definition of sticking out.

The other options do not reflect this meaning; they convey ideas of withdrawal, concealment, or integration, which are opposite concepts to protruding. Understanding the nuances of "protrude" helps in visualizing the action of something being prominent or extending outward.