: Rocks protruding from a cliff face or coastlines that stick out into the water.

The verb is primarily used to describe physical objects or parts of the body that extend outward.

While "stick out" is the common conversational equivalent, is often favored in technical or formal writing. PROTRUDE Definition & Meaning - Merriam-Webster

: A nail protruding from a wall, or an envelope sticking out of a bag. Contextual Variations