Definition: Very large.

Alright class, settle down and listen close to me, Let’s talk about ‘mega,’ for all the world to see! The dictionary tells us it’s “very large,” you know, But let's dig a little deeper, watch our knowledge grow. “Mega” comes from Greek, a word quite grand, Meaning "great" or “huge,” throughout the land! Think of 'megaton,' for bombs so strong, Or ‘megabytes’ in data, where files belong. It's used to show something is much more than just plain, A scale that’s bigger—it’s truly quite a strain! So “mega” means super, colossal and bold, A measurement of greatness, stories to be told! Do you have any questions? Don't hesitate to ask, Let’s make sure this concept is firmly in your task!

Definition: The twenty-fourth letter of the Classical and the Modern Greek alphabet, and the twenty-eighth letter of the Old and the Ancient Greek alphabet, i.e. the last letter of every Greek alphabet. Uppercase version: Ω; lowercase: ω.

Alright class, settle down, let’s take a look! Now we're talking about 'omega,' a word that’s quite grand, It’s the final letter in a language planned! The dictionary tells us, with a helpful plea, That ‘omega’ is the last one, you see! In Greek alphabets – old and new they reside, From Classical times to where our knowledge does glide. The Old and Ancient Greeks, they used it with grace, And now we use it in math, in time and space! Uppercase 'Ω', a bold and grand sign, Lowercase 'ω', so delicate and fine. So remember this lesson, don’t you delay, 'Omega' is the last letter – hooray! Do you have any questions about this final decree? Let's discuss!