Gender of nouns in Spanish

This is a short list of rules for determining noun gender in Spanish. It will work 99% of the time.

• Masculine if noun ends in -o or a consonant
  • Nouns ending in the morhpemes -ción and -dad are feminine
• Feminine if noun ends in -a
  • Nouns ending in -pa, -ta, -ma are masculine
    • rima is feminine

See Wikipedia's discussion of this.

There are some interesting discrepencies in the gender of nouns across Romance languages. A collection of those is being kept track of on the Faux Genders page