Why German has three genders
Every German noun is masculine (der), feminine (die), or neuter (das). The gender does not always match real-world meaning — das Mädchen (the girl) is neuter, not feminine. So you cannot rely on logic. What you can rely on is word endings and a small number of category rules.
Endings that almost always mean DIE (feminine)
- -ung — die Wohnung, die Lösung
- -heit / -keit — die Schönheit, die Möglichkeit
- -schaft — die Freundschaft
- -ion — die Information, die Nation
- -ie — die Energie, die Linie
Endings that signal DER (masculine)
- -er for occupations — der Lehrer, der Bäcker
- -ig — der König (not perfect, but a strong hint)
- -ling — der Frühling
- -ismus — der Kapitalismus
Endings that signal DAS (neuter)
- -chen — das Mädchen, das Brötchen
- -lein — das Fräulein
- -um — das Datum, das Zentrum
- -ment — das Dokument
Category rules that usually hold
- Days, months, seasons, weather, points of the compass → DER (der Montag, der Sommer).
- Most flowers, trees, and fruits → DIE (die Rose, die Birne).
- Young people and animals → DAS (das Kind, das Kalb).
- Metals and chemical elements → DAS (das Gold, das Eisen).
The practical learning method
Never learn a German noun without its article. Learn die Wohnung, not just Wohnung. Use colour-coding (red for die, blue for der, green for das) in your notes for the first few months. Your eyes will start to expect the right colour for the right shape of word, and the genders stop being random.