Base difficulty: Level 2 edit
Level distribution for noun (vehicle): 2: 8 26: 3 210: 28 278: 1 1040: 8 1218: 1 1221: 2 1399: 4
No difficulty overrides set. The base difficulty level will be used for all languages.
Add Difficulty Override
Tier Signals
| Source | Tier | Rank used |
|---|---|---|
basic_english |
Basic (1 of 2) | 600 |
cambridge_yle |
Starters (1 of 3) | 325 |
cefr |
A1 (1 of 6) | 800 |
Rank used = synthetic rank this tier contributes to the combined frequency rank (lower = more common).
Corpus Frequency
| Corpus | Freq (per M) | Best form | Share | Zipf rank | Forms |
|---|---|---|---|---|---|
19th_books |
202.64 | 628 | 100% | 468 | 3 |
20th_books |
145.33 | 791 | 100% | 657 | 2 |
wiki_math |
0.00 | — | — | — | 0 |
wiki_geography |
144.42 | 1787 | 100% | 975 | 2 |
wiki_biology |
0.00 | — | — | — | 0 |
wiki_modern_life |
203.51 | 1360 | 100% | 725 | 2 |
wiki_arts |
34.37 | 3854 | 100% | 3854 | 1 |
wiki_society |
22.33 | 5464 | 100% | 5464 | 1 |
wiki_linguistics |
0.00 | — | — | — | 0 |
wiki_physical_science |
0.00 | — | — | — | 0 |
wiki_history |
61.96 | 4105 | 100% | 2087 | 2 |
early_modern_science |
45.16 | 2429 | 100% | 2429 | 1 |
religious_translated |
54.92 | 2496 | 100% | 1595 | 2 |
cooking |
51.82 | 1729 | 100% | 1729 | 1 |
legal_scotus |
6.88 | 8402 | 100% | 8402 | 1 |
eu_parliament_debates |
33.98 | 3597 | 100% | 2078 | 2 |
openstax_science |
0.00 | — | — | — | 0 |
openstax_society |
0.00 | — | — | — | 0 |
wpa_life_histories |
228.32 | 626 | 100% | 449 | 2 |
Best form = the single best-ranked form in the corpus, share-blind — how the spelling itself ranked. Share = how much of that spelling belongs to this lemma, when several senses compete for it. Zipf rank = all the forms combined (variant spellings included), each scaled by its share, and what feeds the combined frequency rank. Combining forms improves on the best form, but a share below 100% pushes the other way and usually wins: a sense holding a small slice of a common spelling is a rare word, so its rank lands downrated below the best form — and once it falls past what the corpus can support it is capped at the rank an unlisted word would get.