blast-off
nounUK /ˈblɑːst ɒf/
US /ˈblæst ɔːf/
Blast-off is when a rocket lifts up into the sky to start its trip.
We counted down from ten and watched the blast-off on TV.
RELATED WORDS
OTHER MEANINGS
2. The moment a rocket leaves the ground and starts flying.
The blast-off shook the whole viewing area.
3. A very fast or energetic start to something.
The new store had a real blast-off with big crowds on day one.
4. The act of firing engines to push a vehicle upward.
Engineers checked the blast-off data after the launch.