Navigating family vocabulary in a new language is tough, but Spanish family terms follow clear rules. If you're wondering how to talk about your extended family, the core terms are primo for a male cousin, prima for a female cousin, primos for male or mixed-gender groups of cousins, and primas for all-female groups.
Most textbooks stop at the basic definitions, leaving learners confused when dealing with step-relatives, generational gaps, or regional slang. This guide breaks down everything you need to know about cousins in Spanish, from basic gender agreements to advanced extended family terms and common conversational mistakes.
Basic Gender and Plural Rules
Spanish nouns change based on biological sex and grammatical number. When referring to cousins, you must match the article and the ending of the noun to the people you're describing.
- El primo: One male cousin. For example, Mi primo Juan vive en Madrid. (My cousin Juan lives in Madrid.)
- La prima: One female cousin. For example, Mi prima Sofía estudia medicina. (My cousin Sofia studies medicine.)
- Los primos: A group of male cousins, or a mixed group containing at least one male. For example, Mis primos vienen a cenar esta noche. (My cousins are coming to dinner tonight.)
- Las primas: An exclusive group of female cousins. For example, Las primas fueron al cine. (The female cousins went to the movie theater.)
Keep in mind that when you talk about a mixed-gender sibling or cousin group in Spanish, the masculine plural (primos) acts as the default collective form. If you have five female cousins and one male cousin, you refer to the whole group as los primos. BBC has provided coverage on this fascinating subject in extensive detail.
Extended Family and Step-Cousins
When families blend through remarriage or adoption, English uses descriptive phrases like "step-cousin" or "cousin-in-law." Spanish adapts by adding modifiers or using prepositional phrases to clarify the exact tie.
Step-Cousins and In-Laws
- Primo hermanastro: The son of your stepparent (your parent's new spouse's child). Because hermanastro means stepbrother, adding it to primo creates a hybrid term, though many native speakers simply say mi primo in casual conversation.
- Primo político: Technically, a cousin by marriage—such as your spouse's cousin or the child of your aunt or uncle by marriage. According to the Royal Spanish Academy, precise legal definitions vary by region, but político/a is universally understood as an "in-law" modifier.
Blood vs. Non-Blood Relations
While biological cousins are primos consanguíneos, nobody uses that formal term at a Sunday barbecue. If you need to specify that someone is a blood relative versus a step-relative in conversation, you can use descriptive phrasing:
- Es hijo del hermano de mi mamá. (He's the son of my mom's brother.)
- Es el hijo del nuevo esposo de mi tía. (He's the son of my aunt's new husband.)
Generational Distinctions: First, Second, and Third Cousins
Just like in English, Spanish distinguishes between degrees of cousinhood based on shared ancestors (parents, grandparents, great-grandparents). However, conversationally, Spanish speakers rarely use numerical cousin titles beyond second cousins.
- Primo hermano (First cousin): Your parents' siblings' children. This is your closest cousin relationship.
- Primo segundo (Second cousin): Your grandparents' siblings' grandchildren. You share great-grandparents.
- Primo tercero (Third cousin): Your great-grandparents' siblings' great-grandchildren. You share great-great-grandparents.
If you want to describe the child of your own cousin (your cousin's kid), you are that child's tío segundo or tía segunda (second uncle or aunt), while they are your hijo de primo. In many Latin American households, however, older generations casually refer to their cousins' children as sobrinos (nephews/nieces) out of affection.
Common Mistakes to Avoid
Learners often mix up family terms because English uses distinct roots for generations and branches, while Spanish builds on closely related words.
Confusing Cousins with Siblings or Nephews
- The Mistake: Calling your cousin your hermano (brother) or hermana (sister) because you grew up close like siblings.
- Why it's wrong: While families often use affectionate terms like hermano metaphorically, native speakers will be confused if you introduce your blood cousin as your sibling on legal or official documents.
- The Mistake: Calling your cousin's child your primo (cousin).
- Why it's wrong: Your cousin's child belongs to the generation below you. They are technically your sobrino/a in conversational contexts.
Misapplying Gender Agreement
- The Mistake: Saying mis primas when referring to a group of male and female cousins.
- Why it's wrong: Spanish grammatical rules mandate the masculine plural form for any mixed-gender group of people.
Frequently Asked Questions
What do you call a male cousin in Spanish?
A male cousin is called primo. For example, you would say mi primo to mean "my male cousin."
Is primo used for both male and female cousins?
No. Primo is strictly masculine. The feminine form is prima, and the plural mixed-gender form is primos.
How do you say first cousin in Spanish?
A first cousin is called primo hermano (male) or prima hermana (female). This literally translates to "sibling cousin," highlighting the close genealogical tie.
What is the difference between sobrino and primo?
A sobrino is your sibling's child (your nephew), whereas a primo is your parent's sibling's child (your cousin). They occupy different generations on your family tree.
