This is the 16722nd most frequent Russian word.
скорое
"Скорое" means "fast" or "soon" in English, depending on context.
Here 'скорое' refers to the adjective 'swift' or 'quick,' describing the arrival of the guests.
Скорое прибытие гостей приятно удивило хозяев.
The swift arrival of the guests pleasantly surprised the hosts.
In this sentence, 'скорой' is used to describe 'assistance' or 'aid,' meaning that it is prompt or rapid.
Он с нетерпением ожидал скорой помощи.
He eagerly awaited quick aid.
Although 'скоро' is an adverb meaning 'soon' here, it shares the root with 'скорое,' showing how different grammatical forms can have related meanings.