Garantizar

garantir

v. guarantee, vouch for; give a guarantee; give a warranty; promise, assure; pawn; bond; underwrite

= guarantee, warrant, ensure [insure, -USA].
Ex: First, it guarantees that the form already in the catalog and the one to be added for the document at hand are identical, thus ensuring a consistent catalog.
Ex: Such broad selection may also warrant the use of go-and stop-lists.
Ex: The acquisition policy's purpose is to ensure that the library has the right sort of material for its particular needs, and in the right quantities.
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* garantizar el éxito = guarantee + success, ensure + success.

garantieren;versichern;zusichern

temin etmek