Why is it die Erkennung?

Erkennung ends in -ung, and nouns ending in -ung are feminine: in a German dictionary, 99% of them take die.

All nouns ending in -ung
Sense 1
die

Meaning

[1] The recognition of a thing, a factual

[1] das Erkennen einer Sache, eines Sachverhaltes

Examples

[1]

[1]

Declension

1 Singular Plural
Nominativ die Erkennung —
Genitiv der Erkennung —
Dativ der Erkennung —
Akkusativ die Erkennung —

Pronunciation

Dictionary entries include material from Wiktionary. Wiktionary