put in motion or move to act;
"trigger a reaction"
"actuate the circuits"
"The family took off for Florida"
direct attention to, as if by means of contrast;
"This dress accentuates your nice figure!"
"I set off these words by brackets"
cause to burst with a violent release of energy;
"We exploded the nuclear bomb"
make up for;
"His skills offset his opponent's superior strength"
set in motion or cause to begin;
"The guide set the tour off to a good start"
provoke or stir up;
"incite a riot"
"set off great unrest among the people"
- If you want to catch that train we'd better set off for the station immediately.
- What time are you planning to set off tomorrow?
- They've set off on a journey round the world.
- He'll have to circle the mark for 360°more before he can set himself free.
- That jumper sets off the blue of her eyes.
- He set these heavy expenses off against his increase in salary.
- Do be careful with those fireworks; the slightest spark could set them off.
- The first atom bomb was set off over Hiroshima.
- The burning gas was easy to set off an explosion.