Blastoff (noun)

The initial acceleration of a rocket as it leaves the launching pad and begins its flight into space.

Origin:

Late 19th century: from blast + off.

Examples:

1. The blastoff of the space shuttle was an incredible sight, with a tremendous explosion of flame and smoke.
2. The blastoff of the first moon landing was watched by millions of people all over the world.
3. The blastoff of the Saturn V rocket was one of the most powerful events ever witnessed, producing a sound that could be heard for miles.
4. The blastoff of a rocket is one of the most exciting moments in space travel, as it marks the beginning of a journey into the unknown.
5. Blastoff is an important moment in the history of space exploration, as it represents the first step in the journey to other planets and beyond.