bring something ↔ on phrasal verb ( see also ↑ bring )
1 . to make something bad or unpleasant happen SYN cause :
Stress can bring on an asthma attack.
What’s brought this on? Have I upset you somehow?
2 . to help someone to improve or make progress:
Teachers have to bring on the bright children and at the same time give extra help to those who need it.
3 . to make plants or crops grow faster:
Keeping the young plants in a greenhouse will help bring them on.
4 . bring it on informal used to say that you are prepared and willing to deal with something bad that is likely to happen