Base Difficulty

Base difficulty: Level 119 edit

Level distribution for verb (communication): 10: 2 11: 1 29: 1 119: 2 140: 1 185: 1 196: 1 215: 1 230: 1 295: 2 300: 1 310: 3 329: 1 400: 1 415: 4 455: 2 460: 2 475: 4 480: 52 485: 5 1000: 2 1060: 1 1070: 2 1120: 2 1399: 73

Per-Language Difficulty Overrides

No difficulty overrides set. The base difficulty level will be used for all languages.

Add Difficulty Override
-1 to exclude, 1-1399 for level
Frequency and Tier Signals
Combined Frequency Rank: 1647 (weighted harmonic mean of corpus + tier signals; lower = more common)
Tier Signals
Source Tier Rank used
cambridge_yle Flyers (3 of 3) 1200
cefr A2 (2 of 6) 2100

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 164.57 727 50% 559 4
20th_books 148.92 751 50% 630 4
wiki_math 102.78 1178 50% 1113 3
wiki_geography 208.22 436 50% 609 downrated 3
wiki_biology 56.11 2116 50% 2424 downrated 2
wiki_modern_life 0.00 — — — 0
wiki_arts 19.33 3494 50% 6988 downrated 1
wiki_society 50.31 3287 50% 2665 3
wiki_linguistics 0.00 — — — 0
wiki_physical_science 65.89 2012 50% 2164 downrated 2
wiki_history 0.00 — — — 0
early_modern_science 138.02 1105 50% 848 3
religious_translated 161.53 761 50% 658 3
cooking 14.09 2509 50% 5018 downrated 1
legal_scotus 47.16 2731 50% 1963 4
eu_parliament_debates 47.54 1683 50% 2138 downrated 2
openstax_science 52.78 2019 50% 2446 downrated 2
openstax_society 31.42 3632 50% 3768 downrated 2
wpa_life_histories 157.75 564 50% 618 downrated 4

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.