Tick every Icelandic word below whose meaning you actually know. The list spans the whole frequency range, from the most common words to rare ones, and hides a few invented words to keep you honest. We turn your answers into an estimate of your total Icelandic vocabulary, then show you the fastest way to grow it: reading real books.
Check a word only if you know what it means. Some words on the list are not real, don't guess.
An educated native Icelandic speaker knows roughly 15,000 to 20,000 word families, a B2 reader about 8,000 to 9,000, and a B1 speaker around 2,000 to 3,000. This free test estimates your own Icelandic vocabulary in about a minute, from a yes/no check across six frequency bands, with hidden pseudowords to correct for guessing.
Your estimated Icelandic vocabulary
0 words
The fastest way past these numbers is meeting words again and again in real sentences. Lingo7 lets you read real books in Icelandic with tap-to-translate and native-narrated audio. Free to start.
The hardest part of measuring vocabulary is that you can't be asked about every word. So this test samples them. Icelandic words are sorted by frequency, how often they appear in real usage, and split into six bands, from the 600 most common words down to words ranked around 25,000th. You see eight words from each band.
The share you know in a band is scaled up to the whole band. Know six of eight words in a band that stands for 2,000 word families, and you've likely got about 1,500 of them. Adding every band gives your estimate. Then comes the honesty check: the list also holds invented words that look real but aren't. The more of those you tick, the more the test assumes you were guessing, and it scales your score down to match.
It's an estimate, not an exam, read it as a range and a level. What it's genuinely good at is showing where your Icelandic vocabulary thins out, and that the surest way to thicken it is to keep reading.
Icelandic is a North Germanic language famous for its conservatism, having changed little since the medieval sagas, so learners often prefer native coinings (like tölva for computer) over international loanwords. It still uses the old letters þ (thorn) and ð (eth), representing the unvoiced and voiced th sounds. Its grammar is heavily inflected, with nouns, adjectives, and pronouns changing form across four cases, two numbers, and three grammatical genders.
In real usage, the 1,000 most common Icelandic words already cover about 76% of everyday text, and the top 5,000 cover roughly 89%. The rarer words beyond that are where vocabularies really differ, which is why this test samples them too, not just the common ones.
What's your Icelandic level? Take the CEFR test (A1-C2) →
Wondering which language to learn next? Rank 50 languages by difficulty →
How long does it take to learn Icelandic? See the timeline →
This test estimates it in about a minute. You check every Icelandic word you genuinely know from a list sampled across the whole frequency range, from the most common words down to rare ones. The share you know in each frequency band is scaled up to the size of that band, and the totals are added together. The list also hides made-up words; checking those lowers your score, which corrects for guessing.
The words come from real Icelandic frequency lists, split into six bands by how common each word is. If you know 6 of 8 words in a band that represents 2,000 word families, that band contributes roughly 1,500 known words. We sum every band, then apply a guessing correction based on how many non-existent (pseudo) words you marked as known. The result is an estimate of your written vocabulary up to about 25,000 word families.
About a fifth of the list are pseudowords, invented strings that follow Icelandic spelling rules but are not real words. They look plausible, so if you tick them you are guessing. The test subtracts that guessing rate from your real score so the estimate stays honest. Be strict: only check a word if you actually know what it means.
Roughly 2,000-3,000 of the most frequent word families cover everyday conversation (around B1). To read a novel comfortably you usually need about 8,000-9,000 word families (B2-C1). Educated native speakers know somewhere around 15,000-20,000. More than the count, what matters is meeting those words repeatedly in real context.
It is a quick estimate, not an exam. Because it samples only a few words per frequency band, the number can swing by a few hundred to a couple of thousand. It is best read as a range and a level, and as a way to see which frequency bands you have already mastered. Reading real books is the fastest way to grow that number.