Base Difficulty

Base difficulty: Level 29 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: 1145 (weighted harmonic mean of corpus + tier signals; lower = more common)
Tier Signals
Source Tier Rank used
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 165.55 1291 100% 526 5
20th_books 172.79 1199 50% 509 5
wiki_math 0.00 — — — 0
wiki_geography 0.00 — — — 0
wiki_biology 26.70 4408 100% 4408 1
wiki_modern_life 0.00 — — — 0
wiki_arts 276.03 836 50% 491 3
wiki_society 12.29 5110 50% 10220 downrated 1
wiki_linguistics 81.42 2443 100% 1321 3
wiki_physical_science 0.00 — — — 0
wiki_history 61.00 2727 50% 2195 2
early_modern_science 32.27 3768 50% 2890 2
religious_translated 133.27 2000 100% 698 4
cooking 0.00 — — — 0
legal_scotus 0.00 — — — 0
eu_parliament_debates 0.00 — — — 0
openstax_science 0.00 — — — 0
openstax_society 0.00 — — — 0
wpa_life_histories 210.18 984 100% 445 5

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.