Meaning of “immediately” - Learner’s Dictionary

immediately

adverb us uk /ɪˈmiːdiətli/
You should refrigerate any leftover food immediately.He should have reported the accident immediately.If the alarm sounds, you must leave the building immediately.It's my recommendation that this factory be closed immediately.I got home and immediately set about cleaning the house.
NOW

A2 now or without waiting or thinking about something:

You have to come home immediately.
The cause of the problem wasn't immediately obvious.
NEXT

next to something, or close to something in time:

There are fields immediately behind the house.
Cole scored again immediately after half-time.

(Definition of “immediately adverb” from the Cambridge Learner’s Dictionary © Cambridge University Press)