Learner's definition of EVENT
1 a : something (especially something important or notable) that happens
b : a planned occasion or activity (such as a social gathering)
The article recounted the events of the past year.
the last major/big event of the summer
He had no memory of the events that happened afterwards.
The accident was caused by an unusual sequence/chain/series of events.
It's difficult to predict the course of events [=to predict what will happen] with any confidence.
2 : any one of the contests in a sports program
at all eventsorin any event
— used to say that what is being said is true no matter what other things may or may not happen or be true
It's possible that she was too nervous to pay close attention. At all events [=in any case, anyway], she does not have all the details quite right.
It is curious, in any event, why their decision bothers him so much.
in the eventchiefly British
: when something that was planned or thought about actually happened
We thought the weather might delay us, but, in the event [=as it turned out], we were able to leave on time.
in the event of
: if (something) happens
In the event of rain [=if it rains], the ceremony will be held indoors.
I can call for help in the event of an emergency.
in the event (that)
: if it happens that (something occurs)
In the event you (should) decide not to continue your subscription, you may cancel it at any time.
The insurance policy will provide you with a regular income in the (unlikely) event that you are injured.