Was heißt »Bekräftigung« auf Englisch?

Das Substantiv »Bekräftigung« lässt sich wie folgt von Deutsch auf Englisch übersetzen:

Synonyme

Begründung:: establishment; explanation; foundation; justification; reason
Bestätigung:: acknowledgement; confirmaton
Bund:: association; binding; bunch; bundle; confederation; Federal Republic of Germany; federation; flange; fret; German armed forces; league; old measure in glazing; Republic of Austria; solemn pledge; union; waistband; welding rod; welding stick
Commitment:: commitment
Ehrenwort:: word of honour
Eid:: oath
Erklärung:: explanation
Gelübde:: vow
Nachweis:: certificate; proof; verification
Quittung:: receipt
Rückmeldung:: feedback
Schwur:: oath
Verpflichtung:: commitment; obligation
Versicherung:: assurance; insurance; insurance company
Zusage:: covenant
Zuspruch:: encouragement
Zustimmung:: agreement; consent

Here's the confirmation.
Gender confirmation surgeries jumped by 20 percent in the United States from 2015 to 2016, according to a new survey.
Here we see confirmation of an old truth: war is never useful.
Many relatives came to the confirmation.
You will receive a confirmation email after your account has been activated by an administrator.
Please cancel my order and send confirmation that this has been done.