Plural of Nouns in Spanish

Forming the Plural of Nouns in Spanish is fairly easy, because the rules are clear and there are few exceptions. 

In this short lesson, we are going to divide Nouns into 2 groups: those ending in a vowel, and those ending in a consonant. 


Nouns ending in a vowel

1. Almost all nouns which end in a vowel form their plural by adding «-s»:

  • la casa → las casas
  • el perro → los perros


2. For most nouns ending in «í» or «ú» (with accent mark), we can choose to form the plural by adding «-s» or «-es», and both ways are valid:

  • el tabú → los tabús, los tabúes
  • el bisturí → los bisturís, los bisturíes

… except a couple of words for which only the ending in «-s» is valid, the most important ones being:

  • el champú → los champús
  • el menú → los menús




Nouns ending in a consonant

1. In general, nouns which end in a consonant form their plural by adding «-es»:

  • el árbol → los árboles
  • la verdad → las verdades
  • el rey → los reyes


2. Nouns ending in «z» form their plural with «-ces»:

  • la cruz → las cruces
  • la actriz → las actrices 


3. Most nouns ending in «-s» or «-x» don’t change in plural:

  • la crisis → las crisis
  • el tórax → los tórax
  • el lunes → los lunes

… except monosyllables or words stressed on their last syllable:

  • el mes → los meses
  • el autobús → los autobuses
  • el país → los países


4. Nouns introduced from other languages usually add only “-s”:

  • el cómic → los cómics
  • el iceberg → los icebergs
  • el chip → los chips

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