In the previous article, we looked at a simple but surprisingly difficult question:

Does “knowing 5,000 words” mean the same thing in every language?

The short answer was: no.

Vocabulary size is useful, but it does not mean exactly the same thing across languages. A language may have many grammatical forms, a complex writing system, long compound words, rich verb conjugation, or many words that look familiar because they share historical roots with another language.

In this article, we will stay mostly in Europe and look at a few familiar examples: Spanish, French, German and Russian.

These languages are often taught in schools, used in international communication, and supported by many learning apps. They may feel more familiar to many learners than Mandarin, Arabic or Japanese. But even among European languages, vocabulary learning works very differently.

The reason is simple:

Words do not live alone. They live inside grammar systems.

Why European Languages Are Not “The Same Type”

Many European languages belong to the Indo-European language family. This includes Romance languages such as Spanish, French, Italian and Portuguese; Germanic languages such as English, German and Dutch; and Slavic languages such as Russian, Polish and Ukrainian.

Because of this shared history, learners often find recognizable words across languages.

For example:

  • English: nation
  • Spanish: nación
  • French: nation
  • Italian: nazione
  • German: Nation
  • Russian: нация / natsiya

These similarities can help. They make reading easier, especially for educated or academic vocabulary.

But shared roots do not mean identical learning difficulty. The deeper structure of each language still matters. Linguists often describe languages by how they build and change words: some are more analytic, some more fusional, some more agglutinative, and many are mixed rather than pure examples of one type. WALS, a major typological database, describes such differences through how grammatical markers attach to words and how meanings are fused or separated.

So even in Europe, “I know 3,000 words” can mean different things depending on the language.

Spanish: Friendly Vocabulary, Serious Verb System

Spanish often feels welcoming to many learners, especially those who already know English or another European language. Many words are recognizable:

  • animal
  • hospital
  • familia
  • universidad
  • importante
  • posible

This can give learners an early confidence boost. In reading, Spanish is also relatively transparent: spelling and pronunciation are more regular than in English or French. Once learners understand the sound system, they can often pronounce new written words reasonably well.

But Spanish vocabulary is not just a list of familiar-looking nouns.

The verb system is a major part of the learning challenge. Spanish verbs change according to person, number, tense, mood and aspect. Modern Spanish has many tense and mood combinations, and learners must also deal with the subjunctive, irregular verbs and regional variation. Linguistic work on Spanish conjugation databases shows how large and systematic the Spanish verb paradigm is, with thousands of verbs and their full conjugated forms represented in computational resources.

For vocabulary learning, this means something important:

Knowing the dictionary form of a Spanish verb is not enough.

If you know hablar (“to speak”), you also need to recognize forms such as:

  • hablo — I speak
  • hablas — you speak
  • habló — he/she spoke
  • hablamos — we speak
  • hablaría — I/he/she would speak
  • hable — subjunctive form

A learner may “know” the verb but still fail to recognize it quickly in real speech.

So for Spanish, vocabulary learning should combine word meaning + verb patterns. The good news is that many patterns are regular. Once the learner understands them, each new verb becomes easier to absorb.

French: Familiar Words, Less Transparent Sound

French gives learners a different experience.

On paper, many French words look familiar to English speakers because English borrowed a huge amount of vocabulary from French and Latin. Words like important, possible, nation, condition, information, culture, and conversation are easy to recognize in writing.

This is a major advantage for reading.

But spoken French can feel much harder than written French. Many final consonants are silent. Words connect through liaison. Vowels and nasal sounds may be unfamiliar. The written form and spoken form do not always match in an intuitive way for beginners. Oxford’s description of French liaison, for example, defines it as the pronunciation of a normally silent final consonant before a following vowel and notes that it is one of the complex features of French pronunciation.

This creates a special vocabulary problem:

A learner may recognize a French word in writing but fail to recognize it in speech.

For example, a written word may look almost international, but when pronounced in a sentence, it becomes part of a connected sound stream. French learners therefore need not only vocabulary lists, but also repeated listening.

In French, knowing a word means knowing:

  • its written form,
  • its pronunciation,
  • its gender,
  • its common expressions,
  • and how it sounds inside connected speech.

This is why a learner may feel “I know this word” while reading, but still miss it in a film, podcast or conversation.

German: Compounds, Gender and Case

German vocabulary has another special feature: compound words.

German can build long words by combining smaller words. For example:

  • Haus — house
  • Krankenhaus — hospital, literally “sick-people house”
  • Wortschatz — vocabulary, literally “word treasure”
  • Fremdsprache — foreign language

This can be intimidating at first, but it is also powerful. If learners know the parts, they can often guess the meaning of new compound words.

German is well known for productive compounding, especially noun-noun compounds. Linguistic work on compounding often discusses Germanic noun compounding as a major area of analysis.

So in German, the question “How many words do I know?” becomes tricky.

If you know Haus, Schule, Arbeit, Zeit, Sprache, Wort, and Buch, you can understand many compounds built from these elements. A learner’s real comprehension may grow faster than a simple vocabulary count suggests.

But German also has grammatical challenges. Nouns have gender: masculine, feminine or neuter. German also has case marking, traditionally described through nominative, accusative, dative and genitive. These features affect articles, adjective endings and sentence structure.

So knowing a German noun is not only knowing its meaning. Ideally, you also learn it with its article:

  • der Tisch — the table
  • die Sprache — the language
  • das Buch — the book

For German learners, vocabulary is stronger when nouns are learned together with gender and common phrases, not as isolated translations.

Russian: Fewer Familiar Anchors, More Grammatical Forms

Russian gives many learners a very different experience.

For speakers of English or Romance languages, Russian has fewer immediately recognizable words. There are international terms, of course, especially in science, culture and politics, but everyday vocabulary often feels less familiar.

Russian also uses the Cyrillic alphabet. The alphabet itself is not impossible to learn, but it adds an early layer of effort.

The bigger challenge is grammar. Russian nouns change according to case, number and gender. Russian is commonly taught with six main cases: nominative, genitive, dative, accusative, instrumental and prepositional. These cases change the form of nouns, pronouns and adjectives depending on their role in the sentence.

For vocabulary learning, this means a learner must recognize many forms of the same word.

For example, a noun may look different depending on whether it is the subject, object, possession, location or instrument. A beginner may learn the base form but not recognize the same word in a sentence.

Russian verbs add another important feature: aspect. Many verbs come in imperfective and perfective pairs. This means learners often need to understand not only the basic action, but also whether the action is ongoing, repeated, completed or viewed as a whole.

So Russian vocabulary learning is not just about adding more words. It requires building a strong connection between word roots, endings, case patterns and verb aspect.

The Role of Cognates and False Friends

European languages often contain cognates: words that share a historical origin and look similar.

This can help enormously.

If you know English, words in Spanish, French, German or Russian that come from Latin, Greek or modern international vocabulary can be easier to learn. Academic and technical vocabulary is especially full of these connections.

But cognates can also create traps.

Some words look similar but do not mean exactly the same thing. These are often called false friends.

For example, Spanish actual usually means “current,” not “actual” in the English sense. French librairie means “bookshop,” not “library.” German Gift means “poison,” not “gift.”

This is why recognizable vocabulary is useful, but learners must still check meaning in context.

What Does “5,000 Words” Mean in These Languages?

In Spanish, 5,000 well-chosen vocabulary units may give strong everyday reading and communication power, especially because many words are recognizable and spelling is relatively transparent. But verb forms and subjunctive patterns still require practice.

In French, 5,000 vocabulary units may help a lot with reading, but listening comprehension may lag behind if pronunciation and connected speech are not trained.

In German, 5,000 base words may be more powerful than they first appear because compounds expand comprehension. But gender, cases and word order must be learned with the vocabulary.

In Russian, 5,000 vocabulary units can be a strong foundation, but learners must also recognize case forms, aspect pairs and Cyrillic spelling. Otherwise, known words may look unfamiliar in real sentences.

So the number is useful, but incomplete.

A Better Strategy for European Languages

For learners, the best approach is not to ask only:

“How many words have I learned?”

A better question is:

“How usable is my vocabulary in this language?”

For European languages, that means different things:

  • In Spanish, learn verbs in common forms and real sentence patterns.
  • In French, connect written words to sound through listening.
  • In German, learn nouns with articles and watch how compounds are built.
  • In Russian, learn roots together with case patterns and verb aspect.

Across all these languages, the most useful vocabulary is still high-frequency vocabulary. The first few thousand common words matter enormously. But each language asks the learner to organize those words differently.

The Real Lesson

European languages may look more familiar than Mandarin, Arabic or Japanese, but they are not simple copies of English.

Spanish may reward learners with transparent spelling and many familiar words, but its verbs demand attention. French may look easy on the page but sound difficult in natural speech. German may build long words from familiar parts, but gender and case matter. Russian may require learners to think in roots, endings and grammatical roles.

So yes, vocabulary numbers are helpful.

But 5,000 words do not mean exactly the same thing in every European language.

The real goal is not just to count words. It is to build a vocabulary system that matches the language: its sounds, forms, grammar, spelling and common expressions.

In the next article, we will leave Europe and look at Mandarin and Japanese — two languages where the relationship between words, writing systems and vocabulary knowledge becomes even more fascinating.