Why is it die Koexistenz?

Koexistenz ends in -enz, and nouns ending in -enz are feminine: in a German dictionary, 97% of them take die.

All nouns ending in -enz
Sense 1
die

Meaning

[1] The simultaneous presence that exists side by side

[1] das gleichzeitige Vorhandensein, das Existieren nebeneinander

Examples

[1] "In April, Grigorieva had confirmed the separation of the couple - at that time a peaceful coexistence apparently still seemed still"

[1] „Im April hatte Grigorieva die Trennung des Paars bestätigt — damals schien eine friedliche Koexistenz offenbar noch möglich.“

[1] "In 20 years of coexistence there was only one fatal incident on the border"

[1] „In 20 Jahren der Koexistenz hat es nur einen tödlichen Zwischenfall an der Grenze gegeben.“

Declension

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

Pronunciation

Dictionary entries include material from Wiktionary. Wiktionary