Inflate

To fill something with air or gas so it becomes bigger, like blowing up a balloon.

Examples

• When we went to the carnival, I watched the workers inflate the giant balloons that floated high above the crowd, creating a colorful display against the blue sky.
• In science class, we learned how to inflate a balloon by blowing air into it, and then we observed how it changed shape and size with different amounts of air.
• During our camping trip, we had to inflate the air mattress before sleeping under the stars, and it took teamwork to make sure it was fully pumped up.

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