👉 A knot, knob, protuberance or swelling.
Alright class, settle down now, let’s take a look and see, At the word “nodes,” it’s quite tricky, you agree? The dictionary gives us clues, a helpful little plea, Saying "knot," "knob," “protuberance,” for all to clearly see! Let's break it down in a way that makes sense and flows, Think of a bumpy road where the pebbles grow. A node is like one of those bumps you find, A small rise or swelling, leaving no one behind. It could be a knot in rope, a knob on a door, Or even a swelling—don't you explore? Sometimes in diagrams and drawings you’ll see, Nodes are used to represent points, for you and me! So remember this rhyme, it’s quite simple and neat, A node is a bump, a knot, a little treat! Do you have any questions about what we've discussed?