noun
female resident, female inhabitant
B1
Einwohnerin: feminine noun meaning 'female resident' or 'female inhabitant.' Plural is Einwohnerinnen; declension follows regular feminine -n plural (die Einwohnerinnen). It is the feminine counterpart to Einwohner. No irregular plural; use die Einwohnerinnen in nominative plural. Common in demographic contexts.
Examples
Als Einwohnerin des Dorfes kennt sie viele Leute.
As a female resident of the village, she knows many people.
In dieser Stadt gibt es 20.000 Einwohnerinnen und Einwohner.
There are 20,000 inhabitants in this city.
Die neue Einwohnerin stellte sich den Nachbarn vor.
The new female resident introduced herself to the neighbors.
Details
Mnemonics
Picture a woman (female resident) standing in front of her home with a small nameplate 'Einwohnerin'.
Think of the name 'Erin' living 'in' a place: 'Einwohnerin' = Erin who lives there (female).
Feminine: ends with -in (common marker for female persons). Use 'die' — imagine 'die Frau' to recall the article.
Notes
The suffix -in marks a female person (Einwohner = resident (m), Einwohnerin = female resident). In plural the -innen ending indicates a female or mixed group when explicitly feminine.