Urgent abbr. (4)

I believe the answer is:

asap

(Other definitions for asap that I've seen before include "As soon as possible (abbrev.)" , "Notation-acronym meaning without delay" , "'At the earliest moment, initially (4)'" , "Notation or acronym meaning without avoidable delay" , "Notation for as quickly as you can" .)

I've seen this clue in The Star Tribune.

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