1 [uncountable and countable]
when someone or something arrives somewhere [≠ departure]:
Only the timely arrival of the police prevented the situation from becoming worse.
Traffic problems account for one third of late arrivals.
Shortly after our arrival in London, Lisa was attacked.
A deposit is payable on arrival (=when you arrive).
the time when a new idea, product etc is first used or discovered:
The demand for phone numbers has increased since the arrival of mobile phones.
the time when an event or period of time starts to happen:
The arrival of winter can make many people feel depressed.
someone who has just arrived in a place:
New arrivals were greeted with suspicion.
Late arrivals will not be admitted to the theatre.
the place at an airport where people arrive when they get off a plane:
the arrivals lounge
a baby who has just been born