Definition: A list of individuals or groups, usually for an organization of some kind such as military officers and enlisted personnel enrolled in a particular unit; a muster roll; a sports team, with the names of players who are eligible to be placed in the lineup for a particular game; or a list of students officially enrolled in a school or class.

Alright class, settle down now, let’s take a look and see, At the word “roster,” it's quite simple, you agree? The dictionary gives us clues, clear and bright, Let’s break it down with all our might! A "roster" is basically a list, you know, Of folks involved in a certain show. Think of the army, strong and bold, Their officers and soldiers, stories told – that's one role! Or a sports team, ready to play, With names listed for each day. A school’s roster too, it’s true, Of students enrolled, just for you! It’s simply a record, neat and precise, Of who belongs – that's the price! So "roster" means a list, don't you see? A group or people, officially! Now, does anyone have any questions to share? Let's discuss it with care!