Spanish vocabulary · Beginner

How to Say Beaver in Spanish

Castor · noun · kahs-TOHR

The Spanish word for beaver is 'castor,' a masculine noun used across all Spanish-speaking regions to refer to the dam-building rodent.

kahs-TOHR

El castor construyó una presa en el río.

The beaver built a dam in the river.

Beaver in Spanish: Quick Reference

Below are the most common Spanish words for beaver, with pronunciation and regional usage notes.

SpanishEnglishPronunciationRegion / Register
castorbeaverkahs-TOHRDefault, widely understood
el castorbeaverUniversal (masculine noun)

How Native Speakers Use Castor

Real example sentences across three contexts you'll actually run into.

Describing habitat

Los castores viven cerca de ríos y arroyos.

Beavers live near rivers and streams.

Talking about where beavers are found in nature.

Observing behavior

Ese castor está cortando un árbol con sus dientes.

That beaver is cutting down a tree with its teeth.

Pointing out a beaver's characteristic activity.

Wildlife documentary

El castor es un animal muy trabajador que modifica su entorno.

The beaver is a very hard-working animal that modifies its environment.

Explaining beaver ecology in an educational setting.

Avoid These Mistakes When Using Castor

Gender confusion

Incorrect: La castor construyó una presa.

Correct: El castor construyó una presa.

'Castor' is a masculine noun in Spanish, so it takes the article 'el,' not 'la,' regardless of the animal's biological sex.

Spelling error

Incorrect: El cástor vive en el bosque.

Correct: El castor vive en el bosque.

'Castor' does not carry a written accent. The stress naturally falls on the last syllable, following standard Spanish stress rules for words ending in a consonant.

Lock in Beaver Vocabulary with the Parrot Method

Why word lists alone don't stick

Memorizing a translation feels productive, but most learners forget 70% of what they studied within 48 hours. Vocabulary needs spaced repetition AND real-world exposure to transfer to long-term memory.

See Castor used by native speakers

Parrot's short-form videos feature native speakers using castor in real situations. Context-based exposure beats flashcards, you hear El castor construyó una presa en el río. while watching someone live the moment, connecting meaning, sound, and rhythm at once.

Save, review, repeat, stay consistent

Tap any word to save it. Parrot's spaced-repetition system surfaces it right before you'd forget, no manual flashcard creation. The watch, parrot back, save, review cycle turns recognition into fluency at 2.7x the speed of traditional study.

Common Questions About Beaver in Spanish

Is 'castor' the same word used for the castor oil plant?
The animal castor and the castor oil plant are unrelated in Spanish. Castor oil is aceite de ricino — the animal word derives from Latin castor, while the oil comes from the plant genus Ricinus.
Are beavers found in Spanish-speaking countries?
Beavers are not native to Spanish-speaking countries, but an invasive population of North American beavers exists in southern Argentina and Chile. The word 'castor' is still well understood throughout the Spanish-speaking world.
How do I say 'beaver dam' in Spanish?
A beaver dam is called 'presa de castor' or 'dique de castor' in Spanish. 'Presa' and 'dique' both mean dam, with 'presa' being more common in this wildlife context.