Why You Can’t Remember the Spanish Words You’ve Learned and How to Make Them Stick
Updated: Oct 12
Have you ever been in the middle of a conversation in Spanish when a word you know you've learned suddenly disappeared?
You're having coffee with a friend, telling her about your recent trip. You want to tell her how stressful it was to get lost on the way to your hotel and arrive an hour late. You've seen me perdí (I got lost) in your app and in Spanish class… but right now? The words won't come out. 😥
Your friend is eagerly waiting to hear what happened, so you just say No encontré el hotel (I didn't find the hotel), which spoils all the drama.
When you get home, you look at your Spanish notebook, and it says: Me perdí. Of course! 🤦♀️
Or maybe it's worse:
You're talking with native speakers. You know exactly what you want to say, but the word won't come out. You stop, you say "eeeeeh…" but racking your brain doesn’t help. You notice the impatience on their faces, so you give up and drop in the English word. They notice you're struggling and switch to English. (Their intentions are good, but this isn’t much of a help.)
Afterward, you feel disappointed. You decide your Spanish isn't good enough, you get obsessed with vocabulary, and you force yourself to memorize ten new words a day (and forget them a week later 😥).
But what if more vocabulary isn't what you need?
I know how frustrating it is to study vocabulary for hours and hours and then forget it. I hear it from my students all the time.
But the reason is simpler than you think, and once you understand it, you'll feel much better about your Spanish.
It's normal to understand more than you can actually use. The Spanish you know is often broader than the Spanish you can speak. Recognizing a word when you read or hear it doesn't necessarily mean that you can remember it quickly when you speak.
It's not a vocabulary problem. It's a practice problem.
You just need more opportunities to practice and use the words you know.
Now imagine the same coffee with your friend a few months from now. You start telling her about your trip, and me perdí comes out before you even think about it. She laughs at your story, and you feel happy. 😄
That's what it feels like when the words you know are ready to use. You feel more fluent, more confident, and proud of yourself. 💪
In this post, we'll look at what it means to really know a Spanish word, why there are words you understand but can’t retain, and what you can do to make them stick.
Let's dive in!
What does it actually mean to know a word?
When you recognize a Spanish word while reading, it's easy to feel you know it. But recognizing a word is only the first step.
If you recognize it but can't use it when you speak or write, it means you don't fully know it yet. A word is fully yours when you can use it spontaneously and correctly, in familiar situations and new ones.
Take the word mar. You probably know it means sea, as in Vivo al lado del mar (I live by the sea). But then you read En la manifestación había un mar de gente (There was a sea of people at the protest), and suddenly mar has nothing to do with water. It's a huge crowd of people. Knowing a word’s literal and figurative meaning is important.
Words also carry feelings and subtle nuances. Viejo (old) and anciano (elderly) can both describe an old person, but viejo can sound dismissive, while anciano tends to sound more neutral or respectful. And when someone calls their father mi viejo (my old man), the expression is full of affection.
Pronunciation matters, too. Papa and papá look almost identical, but the stress changes everything: PA-pa means potato, and pa-PÁ means dad. 😉 (And please, please, please, don't skip the accent marks when you write in Spanish. They make a huge difference!)
Spelling matters, too. In Latin American Spanish, casa (house) and caza (hunting) sound exactly the same, but they mean very different things. (By the way, Spanish spelling is way easier than English spelling. 😁)
Words also come in families. Once you know mar, you understand marea (tide), marisco (seafood), and mareado (seasick or dizzy).
They also come in company. Learning words in combinations, not in isolation, makes them easier to remember. This helps you avoid common mistakes when Spanish combines words differently from English: prestar atención (to pay attention), tener sentido (to make sense), cometer un error (to make a mistake), valer la pena (to be worth it).
And many words change form. Voy, fui, iba, iré, iría, fuera, vaya are all forms of ir (to go), and that's only when you're talking about yourself. (No wonder they take time to learn. There are a lot of them! 😉)
So, to fully know a word, you have to pronounce it and spell it correctly, know its different meanings and forms, use it literally and figuratively, understand its nuances, and combine it with the right words so you sound natural. 🤯
Does this feel overwhelming? Think about how many years you've been learning words in your own language, and you're still not done!
Let's see what's happening in your brain when you forget words, so you can go easier on yourself the next time a word slips away.
Why do some words disappear when you need them?
If you recognize a word quickly when you hear it or read it but struggle to say or write it, it means you don't completely own it…yet!
What you're experiencing is the gap between recognizing a word and being able to remember it when you need it, and it happens to all language learners.
Think of your brain as having a personal mental dictionary. It holds information about each word, such as its spelling, pronunciation, different meanings and forms, and how it fits into a sentence.
But your mental dictionary isn't like a physical dictionary with every word neatly arranged alphabetically. It's much more personal and connected to your individual experiences.
Think of the word gato (cat). If you grew up with a cat, your brain doesn't just store the word. It may also hold the sound of purring, the feel of soft fur under your hand, the way it curled up on your lap, and the name of the cat you loved as a child. All of those experiences are connected to that one word and form a network that lights up every time you see the word gato.
Now think of a word you met once in a vocabulary app and never saw again. It's in your mental dictionary, too, but almost nothing is attached to it. No wonder it's hard to find.
Every time you actively use a new word, it becomes stronger, better connected, and easier to remember.
Other words are there too, but they're asleep, waiting for you to wake them up. The less you use them, the harder they are to find. You may recognize them when reading or listening, but when you need them in conversation, they aren't available.
That's the tip-of-the-tongue moment. You know you know the word. You might even remember its first sound, a similar word, or its meaning, but not the word itself.
These moments are frustrating, especially when they make you doubt your Spanish. But there's something positive about them: the mental effort to remember a word makes it easier to find next time.
Here's something interesting: research shows that people who speak more than one language have more tip-of-the-tongue moments than people who speak only one. So these moments aren't a sign that something's wrong with your Spanish. 💪
Learning more words without actively practicing them won't make you more fluent.
If the words you already have are still hard to reach, more words won't change that; on the contrary, you'll add more sleeping words to your mental dictionary.
What helps is using new words actively, again and again.
Let´s see how you can wake the words up.
How do you make a Spanish word truly yours?
Reading is a wonderful way to build vocabulary. When you read, the story itself makes the words meaningful and more memorable.
For example, inside 📚 Lee Español ApasionadaMente (LEA), my Reading and Speaking Program for Beginners, we read a book called Me perdí en Medellín by Adriana Ramírez. Even before they start reading, my students learn me perdí because they see it again and again: in the LEA program, in my emails, and on the cover of the book sitting on their nightstand. So when they need it in conversation, it'll be right there. 😉
Common words may come easily, but rarer or trickier words need more encounters. Research varies on exactly how many encounters are needed, but the important point is that one exposure is rarely enough. Meeting a word in different ways makes it more memorable. This is achieved through active repetition.
Think of active repetition as the following path:
Read or hear the word.
Pronounce it correctly. Pronounce it several times until you're sure you know how it sounds.
Understand it. Notice how it's used in different contexts.
Get familiar with it by reading it and hearing it again and again.
Use it actively and intentionally. Put it in your own sentences. Use it when speaking and writing.
At the end of this path, you will be able to:
6. Use it automatically and spontaneously. You won't have to think about it; you'll use it naturally.
After years of teaching Spanish, I've seen how much easier it is for my students to learn new words through reading, but only the right reading.
If you're constantly struggling with books that are far beyond your current level, you spend most of your energy deciphering and translating individual words, with little left for following the story and learning new vocabulary.
As a beginner, reading easy books at your level helps you meet useful, basic vocabulary again and again. That's the repetition you need. But if you're reading on your own, you're missing the step that makes the difference: active practice.
You might be wondering, "Okay, I understand what needs to happen—but how am I supposed to do all of this?"
That's exactly why I designed LEA. It gives you guided reading and speaking practice built around easy-to-read books, with plenty of chances to hear, pronounce, understand, and use new words until they stick.
So, how does LEA help you remember new words?
Here's what that looks like for a single word. Let's say the verb odiar (to hate) is new to you.
When you read the chapter Fernando odia las tormentas, you meet the word again and again, because Fernando hates a lot of things! 😄
In a live session, you hear me read the story, and you start to hear the difference between o-DIAR and O-dia. Then you read out loud, and you pronounce odia several times. And you're only at step two of the path, but you've already met the word many times!
Before the conversation starts, we review the key vocabulary. You get a clear, simple definition of the word and an example, so you know how it works in different contexts.
First, you answer comprehension questions like: ¿Qué odia Fernando? ¿Por qué odia las tormentas? ¿Fernando odia la lluvia?
Next, you choose from personal questions: ¿Odias las tormentas? ¿Qué odias y por qué? ¿Cómo reaccionas cuando odias algo? (Do you hate storms? What do you hate, and why? How do you react when you hate something?)
And if you feel ready, you can go deeper with opinion questions: ¿Cómo son y cómo se comportan las personas que odian algo? ¿Cómo actúan las personas que odian a alguien? ¿Cómo es una relación de amor y odio?
If that repetition isn't enough, during writing practice, we choose the words you're still struggling with, and we practice some more!
A few days later, at a cocktail party with native speakers, someone asks you, ¿Te gusta la vida en Panamá? (Do you like life in Panama), and without stopping to search for words, you answer: Sí, me gusta mucho, pero odio el tráfico. ¡Olé! 💃 (Yes, I like it, but I hate traffic!)
Now imagine that happening with every important word in the story.
LEA sessions are in small groups of up to six learners, so you get to practice… a lot!
The goal of LEA is to help you build vocabulary you can remember and use naturally.
It's not about learning more Spanish. It's about using the Spanish you already have.
Before you go, here's what to take with you:
🌟 Recognizing a word when you read or hear it doesn't mean you fully know it.
🌟 Knowing a word means you can pronounce and spell it, understand its meanings and nuances, recognize the words it goes with, and use it without effort.
🌟 Words you use again and again in speaking and writing are easier to remember, while words you rarely use can be much harder to find when you're speaking.
🌟 Understanding more than you can say is a normal part of learning a language.
Give the Spanish you already know opportunities to become more accessible, more automatic, and more yours.
And when that starts happening, you'll notice something wonderful: the words you've been learning begin to show up when you actually need them. You'll feel more confident speaking, more comfortable expressing yourself, and more aware of just how much Spanish you really do know.
If you're a beginner, come see what it feels like to learn Spanish through stories and conversation, one book at a time, inside LEA.
When you join the LEA Explore List, you'll receive information about the books we're reading, our live conversations, and how to save your spot in a small group of up to six, so you can become a confident reader and speaker.
This is your opportunity to turn the words you know into words you fully know, remember, and actually speak!
¡Hola! I'm Violeta Volioti, Language Coach, book lover, and reading advocate. Learning Spanish through powerful and engaging stories is one of the most effective, fun, and satisfying ways to learn. Reading is power, and in a world filled with people glued to their phones, reading is a rebel act.
Book: María Cano, La flor de trabajo de Adriana Ramírez
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