To stick out from or through something. (Cambridge Dictionary)
If something protrudes from somewhere, it sticks out. (Collins Dictionary)
To thrust. (Merriam – Webster)
To cause to project. (Merriam – Webster)
Extend beyond or above a surface. (Oxford Dictionaries)
What the shape of your chin saying about you.
ADA Requirements for Protruding Objects: What is Wrong with This Picture?