immediately

adv. right away, shortly, at once, without delay

conj. as soon as

Adverb
1. without delay or hesitation; with no time intervening; "he answered immediately"; "found an answer straightaway"; "an official accused of dishonesty should be suspended forthwith"; "Come here now!"
(synonym) instantly, straightaway, straight off, directly, now, right away, at once, forthwith, in real time, like a shot
(pertainym) immediate
2. near or close by; "he passed immediately behind her"
(pertainym) contiguous, immediate
3. bearing an immediate relation; "this immediately concerns your future"
(pertainym) immediate

(adv.)
Without interval of time; without delay; promptly; instantly; at once.
  

(adv.)
In an immediate manner; without intervention of any other person or thing; proximately; directly; -- opposed to mediately; as, immediately contiguous.
  

(adv.)
As soon as. Cf. Directly, 8, Note.
  

Used by Air Traffic Control (ATC) when such action compliance is required to avoid an imminent situation. (FAA4)

Used by ATC or pilots when such action compliance is required to avoid an imminent situation.