Why is it die Passantin?

Passantin ends in -in, and most nouns ending in -in are feminine: in a German dictionary, 88% of them take die.

All nouns ending in -in
Sense 1
die

Meaning

[1] pedestrian diet female who (randomly) passes

[1] Fußgängerin; weibliche Person die (zufällig) vorbeigeht

Examples

[1] The passer -by was ready to make a statement as a witness

[1] Die Passantin war bereit, als Zeugin eine Aussage zu machen.

Declension

1 Singular Plural
Nominativ die Passantin die Passantinnen
Genitiv der Passantin der Passantinnen
Dativ der Passantin den Passantinnen
Akkusativ die Passantin die Passantinnen

Pronunciation

Dictionary entries include material from Wiktionary. Wiktionary