The term "carteles" is the correct plural form of the Spanish noun "cartel," which means "poster" or "sign." In Spanish, the general rule for forming the plural of nouns is to add an "s" to words that end in a vowel. Since "cartel" ends with a vowel (the letter "l" is not considered a vowel, but it is the last letter), the plural is formed by adding "es," resulting in "carteles."
Therefore:
- Singular: cartel
- Plural: carteles
This follows standard Spanish grammar rules for pluralization.