Mach

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.

Hypersonic means Mach 5—five times the speed of sound.

From The Wall Street Journal • Jun. 14, 2026

Mach will inherit Exquadrum’s work on Golden Dome, an effort to build a missile-defense shield that has become a signature defense priority for the administration, and which has been estimated to cost $1.2 trillion.

From The Wall Street Journal • May 19, 2026

The acquisition provides Mach with Exquadrum’s technical development in superfast weapons and its work on the Golden Dome missile-defense shield.

From The Wall Street Journal • May 19, 2026

The company’s goal is to eventually develop a hypersonic plane reaching Mach 5, or five times the speed of sound, and Southern California has the engineering talent base to help achieve that, executives said.

From Los Angeles Times • Apr. 7, 2026

The most visionary of the brain busters pined for the day when a pilot could take one of their creations for a hypersonic joy ride: Mach 5 or faster.

From "Hidden Figures" by Margot Lee Shetterly