/ priˈæmbl; NAmE ; ˈpriːæmbl/ noun
[ C , U ] ( formal ) an introduction to a book or a written document; an introduction to sth you say :
The aims of the treaty are stated in its preamble.
She gave him the bad news without preamble .
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WORD ORIGIN
late Middle English : from Old French preambule , from medieval Latin praeambulum , from late Latin praeambulus going before.