Why is it die Expo?

Expo ends in -o, but that ending doesn’t settle the article: in a German dictionary, 45% of -o nouns take das, 43% take der, and 11% take die. So learn it with its article: die Expo.

Which endings you can rely on
Sense 1
die

Meaning

[1] Shore for exhibition, especially for world exhibition

[1] Kurzwort für Ausstellung, insbesondere für Weltausstellung

Examples

[1] In 2000, an Expo was taken in Hanover.

[1] Im Jahr 2000 fand eine Expo in Hannover statt.

Declension

1 Singular Plural
Nominativ die Expo die Expos
Genitiv der Expo der Expos
Dativ der Expo den Expos
Akkusativ die Expo die Expos

Pronunciation

Dictionary entries include material from Wiktionary. Wiktionary