Why is it die Mediation?

Mediation ends in -ion, and almost all nouns ending in -ion are feminine: in a German dictionary, 94% of them take die.

All nouns ending in -ion
Sense 1
die

Meaning

[1] Procedure for setting up or avoiding conflicts

[1] Verfahren zur Beilegung oder Vermeidung von Konflikten

Examples

[1] The acceptance of the mediation is slowly sitting in German companies

[1] Die Akzeptanz der Mediation setzt sich in deutschen Betrieben nur langsam durch.

Declension

1 Singular Plural
Nominativ die Mediation die Mediationen
Genitiv der Mediation der Mediationen
Dativ der Mediation den Mediationen
Akkusativ die Mediation die Mediationen

Pronunciation

Dictionary entries include material from Wiktionary. Wiktionary