In language teaching, you will often see two words used as if they mean different things: acquisition and learning. The distinction is popular, useful as a rule of thumb, and also debated. This article explains what it means, where it comes from, and how to use it without taking it too literally.
The short answer
In the usual explanation:
- Acquisition is picking up a language through real communication, largely without thinking about rules, in the way young children absorb their first language.
- Learning is conscious study: memorizing vocabulary, studying grammar rules, doing exercises, and being corrected.
Many teachers use “acquire” and “learn” loosely, as everyday synonyms. The technical distinction is mostly associated with one linguist.
Krashen’s distinction
Stephen Krashen proposed this distinction in the 1970s and 1980s as part of a set of ideas about second-language development. In his account:
- Acquisition is a subconscious process that happens when you understand messages in the language. It is what builds your feel for what sounds right.
- Learning produces conscious knowledge about the language, such as grammar rules. Krashen argued that this knowledge mostly works as a “monitor” that lets you check or edit what you say, when you have time and are focused on form.
He also argued that understanding input just beyond your level drives acquisition. We discuss that idea, and the case for speaking practice, in our guide to language learning methods.
Examples
Imagine two learners of Spanish.
- Learner A listens to a lot of conversations and gradually starts to notice that people say “Me gusta el café” (I like coffee; literally, “the coffee pleases me”) without ever being told a rule. Eventually A starts using the pattern naturally. This is an example of acquisition.
- Learner B reads an explanation of how “gustar” works, memorizes that the thing liked is the grammatical subject, and then practises with exercises. This is learning.
Both learners may end up saying the same sentence, but they reached it differently. In real life, most people do a bit of both at once.
The line is blurry
Many researchers have criticized the strict split. Common objections include:
- It is hard to prove, or measure, what is “subconscious” and what is “conscious”.
- Many studies suggest that explicit instruction can help learners, and that conscious knowledge can sometimes turn into more automatic skill with practice. Krashen disagreed with this “interface” view, but it has many supporters.
- Some people need explicit explanation, especially adults working with a language that is very different from their own.
So the contrast is best seen as a helpful picture, not a settled scientific law.
Children and adults
Children typically acquire a first language through years of daily interaction. Adults learning a second language usually have less time and more analytical ability, so they often combine natural exposure with deliberate study. Adults can still acquire a language through large amounts of understandable input, but this generally takes time and regular contact with the language.
Combining both
A balanced routine can include both:
- Acquisition-style activities: listening to podcasts, reading graded books, watching shows with subtitles, and having conversations. See the best input sources for language learners and immersive learning strategies you can use at home.
- Learning-style activities: short grammar explanations, vocabulary review, and corrected writing.
- Feedback: use your study to notice patterns, then look for those patterns in real material.
If you feel that you are studying a lot but not progressing, our article on common language learning problems may help.
Related terms
- Language development usually refers to how children’s first language grows, though the word “acquisition” is used for that too, so the two are often treated as near-synonyms in that setting.
- “Taught” vs “learned” simply contrasts what someone explained to you with what you took in. You can learn without being taught, and be taught without learning.
- ESL and EAL are teaching labels. ESL means English as a Second Language, and EAL means English as an Additional Language. EAL is often preferred in school settings because many students already speak more than one language.
What about Chomsky?
Noam Chomsky argued that humans are born with an innate capacity for language, often described as universal grammar. His work shaped debates about first-language acquisition. It is not a study method, and researchers still disagree about how much of language is built in and how much is learned from experience.
Key takeaways
- Acquisition means absorbing a language through meaningful use; learning means conscious study.
- The distinction comes mainly from Krashen and is debated.
- Most learners benefit from a mix of both, with plenty of understandable input.