Iteration: Iteration refers to repeating a set of instructions multiple times within a program using loops. In this context, it means repeating steps to print each row and character/number in forming the triangle pattern.
Character/Number Pattern: A character/number pattern is an arrangement or sequence created by combining specific characters (e.g., asterisks) or numbers following certain rules or algorithms. In printing a triangle, the character/number pattern represents the shape and design of the triangle.
Loop termination condition: The loop termination condition is a logical expression that determines when a loop should stop executing. In the context of printing a triangle, it helps determine how many rows need to be printed and when the loop should terminate.