A point in geometry is a location. It has no size, no width, no length and no depth.
A tip of a sword.
A period at the end of a sentence.
A bead.
Thumbtacks.
A pinhole on a graph.
Cell.
Floor meet at the corner of the room.
A point where 2 wall meet.
A hole in the ceiling.
A hole made be a safety pin in a thin fabric.