Definition of blastoff
(Entry 1 of 2)
: a blasting off (as of a rocket)
blast off
verb
blasted off; blasting off; blasts off
Definition of blast off (Entry 2 of 2)
: take off sense 1b
—used especially of rocket-propelled missiles and vehicles
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Merriam-Webster unabridged
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Time Traveler for blastoff
The first known use of blastoff was in 1934
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