Definition: Consisting of separate modules; especially where each module performs or fulfills some specified function and could be replaced by a similar module for the same function, independently of the other modules.

Alright class, settle down, let’s take a look! Today we're tackling a word that pops up quite a lot – “modular.” It sounds a little fancy, doesn’t it? Let's break it down nice and slow. The dictionary gives us a good starting point: "Consisting of separate modules; especially where each module performs or fulfills some specified function and could be replaced by a similar module for the same function, independently of the other modules.” Now, let’s put that into simpler terms. Think of it like building with LEGOs! Modular is all about building blocks . Each little block – each “module” – has a specific job to do. Maybe one module makes a wheel, and another makes a window. They work together, but they’re independent. You can swap out the wheel for a different wheel, or even a track, without messing up the whole castle! Let's rhyme it out a bit: “Modular means, don’t you see, Like pieces separate, working free. Each has its part, a focused plea, And can be swapped for you and me!” Essentially, “modular” describes something that’s made up of smaller, interchangeable parts. It's about flexibility and the ability to adapt – like a puzzle where you can swap pieces around! Do you have any questions about this concept? Don’t hesitate to ask – understanding "modular" is key to grasping many ideas in computer science and beyond.