Which word means 'to explain something in a way that makes it understandable; to instruct'?

• A. Illustrate
• B. Image
• C. Immigrate
• D. Illuminate

Answer: (D)

Making something clear and understandable is the idea behind this word choice. Illuminate means to light up, and when used figuratively it describes shedding light on a topic so it becomes easy to grasp. It often carries the sense of guiding someone through a concept or offering clear instruction. For example, a teacher can illuminate a complex process by breaking it down step by step and using a simple analogy, which helps students see how it works.

Illustrate also involves explaining with examples or visuals, so it’s close, but it emphasizes demonstration or depiction rather than the act of making the idea plainly understood. Image is about forming or conjuring a mental picture, which isn’t about explaining. Immigrate is unrelated to explaining or instructing.