🇬🇧🇪🇸 planetarium - planetario : English Lesson

Meaning of "planetarium" ("planetario"), detailed definition, and a short video lesson below.

A planetarium is a special building where you sit in comfy seats and look up at a huge round ceiling that becomes a pretend night sky. A powerful machine shines moving pictures of stars, planets, and galaxies onto the ceiling, so it feels like you’re flying through space without ever leaving your chair. In a planetarium, you can watch the sun rise and set in seconds, see constellations appear, and even zoom out to look at the whole solar system, all while staying safely on Earth.

Watch and listen to this English flashcard to understand the word in more detail, with an easy example sentence.

During the show, the planetarium made us zoom to Mars, and my dad said, “I didn’t even pack snacks for this trip.”

Our class went to the planetarium, and my teacher pretended not to nap in the comfy, tilted seats.

At the planetarium, my grandpa kept pointing at every star and saying, “I knew that one when it was just a nebula.”

The planetarium guide dimmed the lights and said, “We’re leaving Earth now,” and my mom whispered, “But my laundry!”

The planetarium felt so real that when the sun rose on the dome, I almost put on sunscreen.

At the planetarium, the child lay back as a dome of stars spun above. The planetarium narrator pointed out a slow blue world during the planetarium show. In the planetarium light she reached, then laughed when a comet crossed the dome. Exiting the planetarium, she stood in the quiet street, eyes bright and hands clasped.

This word is at the C2 level, which means it represents the highest mastery of English. It’s often used in specialized or highly formal contexts and helps you communicate with precision and subtlety, much like a native speaker.

Expanding your English vocabulary is one of the best ways to improve your pronunciation, spelling, and confidence in English. Watch the video above to memorize the word, understand its meaning, and see example sentences in action. Discover related words to grow your vocabulary naturally. Add words to your playlist for stress-free, effective learning—anytime, anywhere! Watch, learn, repeat.