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Definitions

vacuum

[vak-yoom, -yoo-uhm, -yuhm] / ˈvæk yum, -yu əm, -yəm /


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Keeping super-cold liquid oxygen and methane stable in the vacuum of space, then transferring them between spacecraft, is one of the most demanding engineering challenges in the programme.

From BBC • Apr. 10, 2026

The Roomba wasn’t the first robotic vacuum but became the most well-known, and Greiner is credited with helping to popularize the use of robots as domestic helpers that can reduce household labor.

From The Wall Street Journal • Apr. 9, 2026

But he said his perspective on life remains rooted: "We live on a fragile planet in the vacuum and the void of space."

From Barron's • Apr. 9, 2026

WSJ | Buy Side: This lightweight, agile cordless vacuum cleans in all directions, with a green laser to show hidden dust.

From The Wall Street Journal • Apr. 9, 2026

Zero in quantum mechanics invests the vacuum with infinite energy.

From "Zero: The Biography of a Dangerous Idea" by Charles Seife




Vocabulary lists containing vacuum