WordieWhat Is Language Interference?
Language Interference: the influence of a learner's first language (or another known language) on a new one that leads to errors, such as using a native word order, a false friend or a translated collocation.
Also known as: L1 interference, negative transfer, cross-linguistic influence
Language interference happens when a language you already know, usually your first language (L1), causes mistakes in a language you are learning. You carry over a word, a meaning, a grammar pattern or a sound that does not work in the new language. Linguists call this negative transfer, as opposed to positive transfer, where your first language helps.
Where the concept comes from
Uriel Weinreich's Languages in Contact (1953) used "interference" for the deviations that arise when bilinguals mix the norms of two languages. Robert Lado's Linguistics Across Cultures (1957) then proposed the contrastive analysis hypothesis: compare two languages, and the differences will predict learners' difficulties. Later research showed this was too simple. Many errors are not caused by the L1 at all, and some predicted errors never appear. Since the 1980s researchers have preferred the neutral term cross-linguistic influence, and Terence Odlin's Language Transfer (1989) is the standard overview.
Types of language interference
| Level | Example (learner of English) |
|---|---|
| Vocabulary (false friends) | "The actual president" meaning the current one (German aktuell, Spanish actual) |
| Collocation | "Make a photo" (German ein Foto machen) instead of take a photo |
| Grammar | "I have 25 years" (Spanish tengo 25 años, French j'ai 25 ans) |
| Word order | "I like very much football" (adverb placement from Romance languages) |
| Pronunciation | No distinction between ship and sheep when the L1 has a single vowel there |
An example of negative and positive transfer
A Spanish speaker writes:
"I was very embarrassed at the meeting, so I told my boss."
If they meant "pregnant" (Spanish embarazada), that is negative transfer from a false friend. The same writer correctly uses information, possible and economy without ever studying them, because Spanish información, posible and economía are true cognates. That is positive transfer.
Why it matters for vocabulary learning
Learners naturally map new words onto words they already know. That is efficient most of the time, but it hides differences in meaning, range and use. English sensible is not French sensible (sensitive). Even when meanings match, collocations often do not: you make a decision in English but take one in French (prendre une décision). These errors are hard to notice because the sentence feels natural to the learner. Left uncorrected, they can become stable habits, a process linked to fossilization.
Interference also explains why translation-only flashcards can mislead: a card that says actual = aktuell teaches the error directly.
How to reduce interference
- Learn words in sentences. Context shows how a word is really used. Sentence mining works well here.
- Study collocations, not just words. Note the verb that goes with a noun (pay attention, take a photo). See how to learn collocations.
- Keep a personal false friends list. Write down every interference error you are corrected on, with the correct form.
- Check monolingual definitions. An English-English definition reveals differences a translation hides.
- Get feedback. Teachers, tutors or native-speaker friends catch errors you cannot hear yourself.
- Read a lot. Large amounts of input gradually build a feel for what sounds natural.
Limitations of the concept
Not every error is interference. Many errors (like "he goed") are developmental and made by learners from all backgrounds. Transfer is also selective: learners tend to transfer features they perceive as similar or general, not everything that differs. Treat L1 interference as one useful explanation, not the explanation for every mistake.
Sources: Weinreich, U. (1953) Languages in Contact; Lado, R. (1957) Linguistics Across Cultures; Odlin, T. (1989) Language Transfer: Cross-Linguistic Influence in Language Learning; Jarvis, S. & Pavlenko, A. (2008) Crosslinguistic Influence in Language and Cognition.
Frequently asked questions
What is the difference between positive and negative transfer?
Positive transfer happens when your first language helps, for example when a cognate like Spanish 'hospital' matches English 'hospital'. Negative transfer, or interference, happens when it misleads, as with Spanish 'embarazada' (pregnant) and English 'embarrassed'.
What are common examples of L1 interference in English?
Saying 'I have 25 years' (from Spanish or French) instead of 'I am 25', 'make a photo' instead of 'take a photo', or 'actual' meaning 'current' (from several European languages) are typical examples.
Can language interference be avoided?
It cannot be eliminated, since all learners draw on what they already know, but it can be reduced by learning words in context, studying collocations, keeping a list of your personal false friends and getting feedback on your writing and speech.
Does interference only come from the first language?
No. A second or third language can also interfere with a new one. Learners of two related languages, such as Spanish and Italian or Danish and Norwegian, often mix them.
Related terms
False Friend
A word in one language that looks or sounds like a word in another but has a different meaning, such as Spanish embarazada (pregnant) and English embarrassed, or German Gift (poison) and English gift.
Cognate
A word that shares its origin with a word in another language and usually still looks and means something similar, such as English night, German Nacht, French nuit and Spanish noche.
Collocation
A combination of words that occur together more often than chance would predict and sound natural to native speakers, such as heavy rain, make a decision or deeply regret.
Fossilization
the process by which certain errors or non-native features in a learner's second language stop changing and persist, even with continued exposure, practice and instruction.
Idiom
A fixed expression whose overall meaning cannot be worked out from the meanings of its individual words, such as spill the beans (reveal a secret) or under the weather (slightly ill).
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