The basic rule, and why it isn’t enough
Most Spanish nouns ending in -o are masculine (el libro) and most ending in -a are feminine (la casa). That rule covers a lot, but some of the most common words in the language break it, and nouns ending in -e or a consonant follow no simple rule at all. This drill focuses on exactly those words.
Patterns that help
Usually feminine
- -dad, -tad: la ciudad, la libertad
- -ción, -sión: la canción, la televisión
- -z (many): la luz, la nariz, la voz
- -umbre: la costumbre
Usually masculine
- -ma (from Greek): el problema, el tema, el sistema
- -ón (not -ción): el corazón, el avión
- Most consonants: el reloj, el árbol, el lápiz
- Stressed final vowel: el sofá, el café
The exceptions everyone learns the hard way
| Noun | Why it’s surprising |
|---|---|
| el día | ends in -a but is masculine |
| el mapa | ends in -a but is masculine |
| la mano | ends in -o but is feminine |
| la foto, la moto | short for fotografía and motocicleta |
| el agua | feminine, but takes el because it starts with a stressed a |
| la razón | ends in -ón but is feminine |
How to make it stick
Never learn a noun on its own. Learn el problema and la mano, not problema and mano. When you add words to flashcards or notes, always write the article. For nouns ending in -e there’s no shortcut, so a quick daily round of this drill is the fastest way to build the instinct.