In Spanish, nouns (sustantivos) are words used to name people, animals, places, things, or ideas. Each noun has a gender (masculine or feminine) and a number (singular or plural).
  • Gender: Most nouns ending in -o are masculine (e.g., niño - boy), and those ending in -a are feminine (e.g., niña - girl). There are exceptions, so it’s important to memorize tricky ones.
  • Number: To form plurals, generally add -s if the noun ends in a vowel (e.g., librolibros) and -es if it ends in a consonant (e.g., mujermujeres).
  • Common vs Proper: Common nouns refer to general objects or concepts (e.g., ciudad - city), while proper nouns name specific people or places (e.g., Madrid).
Understanding nouns’ gender and number is key for agreement with adjectives and verbs in Spanish grammar.

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Last updated: Wed Jun 18, 2025

Loco