English
Spanish
Combustión
Near Perfect Cognate
Both come from Latin 'combustio', meaning 'a burning'; derived from 'comburere' (to burn up), it is a combination of 'com-' (intensive) and 'urere' (to burn), describing the process of burning or rapid oxidation.
The word "combustion" refers to a chemical process in which a substance reacts rapidly with oxygen to produce energy in the form of heat and light.
The engine uses combustion.
English and Spanish share thousands of words because both languages have deep roots in Latin. Over centuries, English borrowed many Latin‑based words, while Spanish evolved directly from Latin. That’s why so many Spanish words look familiar to English speakers, and vice versa.
“If you speak English, you already know thousands of Spanish words.”
Animal → Animal
Perfect cognate
Identical spelling, identical meaning—but pronunciation varies. These are freebie words you don't have to memorize.
Communication → Comunicación
Near cognate
Small, predictable spelling shift. Swap -tion for -ción and you've unlocked hundreds of words.
Embarrassed → Embarazada
False friend
Looks familiar but means something different. Embarazada means pregnant, not embarrassed.
Both languages inherited thousands of words from Latin — English through the Norman Conquest and centuries of scholarly borrowing, Spanish as a direct descendant of Vulgar Latin. The result is an enormous pool of shared vocabulary that makes Spanish one of the most accessible languages for English speakers.
cognate pairs shared between English and Spanish — that’s thousands of words you already recognize.
of English words have a Spanish cognate, giving you a head start before you even open a textbook.
Most cognates follow predictable rules. Learn a handful of patterns and you can decode words you’ve never studied.
| English | Spanish | Example |
|---|---|---|
| -tion | -ción | Nation → Nación |
| -ity | -idad | University → Universidad |
| -ous | -oso | Famous → Famoso |
| -ble | -ble | Possible → Posible |
| -al | -al | Animal → Animal |
| -ment | -mento | Moment → Momento |
| -ence | -encia | Silence → Silencio |
Not every familiar-looking word means what you think. These are called false friends — or falsos amigos — and they can lead to awkward mix-ups if you’re not careful.
Our collections flags false friends so you can learn the difference before it catches you off guard.
Embarazada
Éxito
Actual
A cognate shares a common ancestor in two languages — both words evolved naturally from the same root. A loan word is borrowed directly from one language into another. For example, "animal" is a cognate (both come from Latin), while "kindergarten" is a loan word borrowed into English from German.
Absolutely. Research shows cognates can help you pick up more vocabulary faster. Because you already know the shape and meaning, you can focus your energy on pronunciation, grammar, and the words that don't have English equivalents.
No. Perfect cognates have identical spelling (like "animal"), but most have small, predictable differences that follow consistent patterns — English -tion becomes Spanish -ción, -ity becomes -idad, and so on. Once you learn a few patterns, you can decode thousands of words.
Estimates range from 10,000 to 15,000 cognate pairs. Even a beginner can recognize several thousand Spanish words on sight, providing a significant head start in reading comprehension and vocabulary building.
