Dictionary.com
Thesaurus.com
Synonyms

blastoff

American  
[blast-awf, -of, blahst-] / ˈblæstˌɔf, -ˌɒf, ˈblɑst- /

noun

Aerospace.
  1. the launching of a rocket, guided missile, or spacecraft.


blastoff British  
/ ˈblɑːstˌɒf /

noun

  1. the launching of a rocket under its own power

  2. the time at which this occurs

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

verb

  1. (adverb; when tr, usually passive) (of a rocket, spacemen, etc) to be launched

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of blastoff

First recorded in 1950–55; noun use of verb phrase blast off

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.

The launchpad also was damaged on blastoff — sending debris flying across nearly 400 acres.

From Los Angeles Times

SpaceX's next-generation spacecraft Starship, developed to carry astronauts to the moon and beyond, was set for blastoff on Saturday for a repeat test launch from south Texas.

From Reuters

Before my phone broke, I’d watched the blastoff footage online all the time to remind myself that I too was meant to be a scientist and someday walk in space.

From Literature

Many of those on waiting lists are biding their time before blastoff by signing up for training.

From Seattle Times

The blastoff marked the first space crew launch since Russia launched an invasion of Ukraine on Feb. 24.

From Seattle Times