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English definition of “blast-off”

blast-off

noun [U or S]     /ˈblɑːst.ɒf/ US  /ˈblæst.ɑːf/
the moment when a spacecraft leaves the ground: Five seconds to blast-off!Space travelTravelling by aircraftAviationMovement through the air
(Definition of blast-off noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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