What are the most common Spanish false friends?

False friends (falsos amigos) are Spanish words that look like English ones but mean something different. The classic: embarazada means pregnant, not embarrassed. A few dozen of them cause most of the confusion, and they're worth learning on purpose.

The ones that catch people most

These are the ones I'd put at the top of the list:

• embarazada means pregnant. To say you're embarrassed, use tengo vergüenza or me da vergüenza.
• éxito means success. The exit is la salida.
• librería is a bookstore. A library is una biblioteca.
• actual means current or present-day. Actually is en realidad or de hecho.
• asistir usually means to attend. To assist is ayudar.
• constipado means having a cold (stuffy). Constipated is estreñido.
• sensible means sensitive. Sensible is sensato or razonable.
• realizar means to carry out or achieve. To realize (understand) is darse cuenta.
• ropa is clothing, not rope. Rope is cuerda.
• sopa is soup, not soap. Soap is jabón.
• suceso is an event. Success is éxito.

Why they happen

Most false friends come from the same Latin word drifting in different directions. English kept one meaning, Spanish kept another. Actual and actually are a good example: both come from the idea of "in action," but they ended up with different jobs.

That also means they're not random. Many are formal-sounding words, which is exactly where cognates are strongest. The same pattern that helps you with cognates is the one that sometimes burns you.

Partial false friends

Some words overlap but not completely, which is trickier:

• Pretender means to try or intend, not to pretend. To pretend is fingir.
• Introducir is to insert or introduce an item, but to introduce a person you use presentar.
• Argumento can mean an argument in the logic sense, but a fight is una discusión or una pelea.
• Soportar means to put up with. To support someone emotionally is apoyar.

How to avoid getting stuck on them

You don't need to memorize a 200-word list. A few habits help more:

1. Learn the top ten above and add new ones as they bite you. Everyone has their own set.
2. Treat "feels too easy" words with suspicion. If a Spanish word looks identical to English and the sentence doesn't make sense, check it.
3. Learn them in a sentence. Estoy constipado, no puedo respirar bien (I have a cold, I can't breathe well) sticks better than a list entry.
4. Don't worry about the mistake itself. People will usually understand from context, and you'll remember it forever after the first awkward moment.

If you read or listen to a lot of real Spanish, you'll see most of these in context, and your brain will quietly sort them out. That's the nice thing about false friends: they're a problem mainly for people who only study from lists.

If you want that kind of context, Langtok (my app) is made of short Spanish stories with word-by-word subtitles. When a word doesn't fit the sentence, you tap it, check the translation and save it to practice later.