How to Say "foreign" in Spanish
The most common Spanish word for “foreign” is “extranjero” — use this word when referring to something or someone from a country other than your own, like languages, people, or policies.
extranjero
ehx-trahn-HEH-roheks.tɾaŋˈxe.ɾo

Examples
Mi vecino es un estudiante extranjero.
My neighbor is a foreign student.
Mi hermana estudia un idioma extranjero.
My sister studies a foreign language.
La inversión extranjera es importante para la economía.
Foreign investment is important for the economy.
Matching the Noun
As an adjective, 'extranjero' must change its ending to match the thing it describes in gender (o/a) and number (singular/plural).
Gender Mismatch
Mistake: “Compré una comida extranjero.”
Correction: Compré una comida extranjera. (Because 'comida' is feminine.)
extraño
Examples
Había un sonido extraño en la noche.
There was a strange sound in the night.
externo
eks-TEHR-noheksˈteɾno

Examples
Es importante aplicar el protector solar en la piel externa.
It's important to apply sunscreen to the external skin.
Esta crema es solo para uso externo.
This cream is for external use only.
Necesito un disco duro externo para mis archivos.
I need an external hard drive for my files.
Factores externos afectaron el resultado del examen.
External factors affected the exam result.
Matching the Noun
This word changes its ending to match the person or object it describes. Use 'externo' for masculine (el factor), 'externa' for feminine (la capa), and add an '-s' for plurals.
Word Order
In Spanish, this word usually comes after the thing it is describing, like 'disco externo' (hard drive external), which is the opposite of English.
Confusing Externo with Exterior
Mistake: “La parte externo de la casa.”
Correction: La parte exterior de la casa.
ajeno
ah-HEH-noaˈxeno

Examples
No te metas en asuntos ajenos.
Don't meddle in other people's business.
No debes tomar lo ajeno.
You shouldn't take what belongs to others.
No me gusta meterme en asuntos ajenos.
I don't like to get involved in other people's business.
Ese problema es ajeno a nuestra empresa.
That problem is foreign to (unrelated to) our company.
Matching the Noun
Since this is a describing word, it must match what it describes. Use 'ajeno' for masculine items and 'ajena' for feminine items (e.g., 'el coche ajeno' vs 'la casa ajena').
Using 'de otros' every time
Mistake: “Es el libro de otros.”
Correction: Es un libro ajeno.
exótico
Examples
Probé un plato exótico en mi viaje.
I tried an exotic dish on my trip.
alienígena
Examples
Los científicos estudian especímenes alienígenas.
Scientists study alien specimens.
forastero
fo-ras-TEH-rofoɾasˈteɾo

Examples
Los forasteros a menudo se pierden en el casco antiguo.
Outsiders often get lost in the old town.
Trajeron costumbres forasteras que nadie entendía.
They brought outside customs that no one understood.
Ese acento forastero delataba su origen.
That foreign accent gave away his origin.
La influencia forastera cambió el estilo de la arquitectura local.
Outside influence changed the style of local architecture.
Matching the Noun
As a describing word, it must match what it describes. For a feminine thing like 'costumbre' (custom), use 'forastera'.
Confusing with 'Extraño'
Mistake: “Using 'forastero' to mean 'weird'.”
Correction: Use 'forastero' to mean 'from another place'. If something is just 'weird' or 'strange' in character, use 'extraño' or 'raro'.
Extranjero vs. Extraño
Related Translations
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