How to Say 31 in Spanish | Treinta y Uno Pronunciation Guide
The cardinal number for 31 in Spanish is "treinta y uno" (IPA phonetic pronunciation: /ˌt̪ɾẽĩn̪.t̪a i ˈu.no/). Here's a breakdown of the word:
- “Treinta” (IPA: /t̪ɾẽĩn̪.t̪a/) - This means "thirty".
- “Y” (IPA: /i/): This means "and".
- “Uno” (IPA: /ˈu.no/) - This means "one".
Pronunciation Guide for Treinta y Uno and Trigésimo Primero
To pronounce 31 in Spanish, listen to the audio clips below:
Ordinal Number: Trigésimo Primero
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The Spanish Frequency Dictionary series covers the 10,000 most common Spanish words — ranked by how often native speakers actually use them, with IPA pronunciation, English translations, and bilingual example sentences at every level.
Browse all 4 volumes →The ordinal number for 31 in Spanish is "trigésimo primero" (IPA: /tɾiˌxesimo pɾiˈmeɾo/). Here's a breakdown of the word:
- “Trigésimo” (IPA: /tɾiˈxesimo/) - This means thirtieth.
- “Primero” (IPA: /pɾiˈmeɾo/): This means first.
How to Use "Treinta y Uno" in a Sentence
Here are some example sentences using the cardinal number "treinta y uno":
- Tengo treinta y un años.
- Hoy es el treinta y uno de octubre.
- Compré treinta y un dulces para la fiesta.
- Necesito treinta y un dólares para comprar esto.
- La temperatura es de 31 grados Celsius.
(I am thirty-one years old.)
(Today is October 31st).
(I bought thirty-one candies for the party.)
(I need 31 dollars to buy this).
(The temperature is 31 degrees Celsius).
How to Use "Trigésimo Primero" in a Sentence
Here are some example sentences using the ordinal number "trigésimo primero":
- Mi cumpleaños es el trigésimo primero de marzo.
- El trigésimo primer episodio de mi serie favorita fue el mejor.
(My birthday is March 31st).
(The thirty-first episode of my favorite series was the best).
Cultural Significance of Number 31 in Spanish-Speaking Countries
The number 31 holds cultural significance in many Spanish-speaking countries, particularly on October 31st. In Mexico and other Latin American nations, the Day of the Dead celebrations often culminate on November 2nd, but the vigil begins on October 31st.
Comparison with Other Languages
In English, thirty-one is "thirty one," while in French it's "trente et un." This comparison highlights how different languages structure numbers uniquely.
How to Say Thirty-One in Spanish: Formal Settings and Beyond
"Treinta y uno" is commonly used in both formal and informal settings. However, when writing formally or in legal documents, it's often more appropriate to use "trigésimo primero."

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