Oh dear, I've dropped it! (4)

I believe the answer is:

oops

(Other definitions for oops that I've seen before include "Exclamation on making minor error" , "My bad" , "Exclamation recognising a mistake has been made" , "Exclamation after mistake or minor accident" , "Exclamation on making a minor mistake" .)

I've seen this clue in The Guardian.

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