German nouns ending in -in
Add -in to a man's job or nationality and you get a woman: der Lehrer, die Lehrerin. Always feminine.
Say the article and the noun together. The ending is a hint, not a word.
On the 471 common nouns with this ending in the frequency list behind these rules, 99.4% take die. We label that “always”. The count is from german-nouns (Wiktionary, CC BY-SA 4.0). It is not an exam pass rate.
Exceptions in this rule
- der Muffin
Learn the exceptions as pairs. The ending is still worth using for every other noun.
Examples the course uses
- die Lehrerin
- die Ärztin
- die Freundin