Base Difficulty

Base difficulty: Level 10 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: 79 (weighted harmonic mean of corpus + tier signals; lower = more common)
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 6831.90 29 100% 20 6
20th_books 7159.44 25 100% 19 5
wiki_math 758.94 426 100% 176 4
wiki_geography 184.14 707 100% 707 1
wiki_biology 142.54 983 100% 983 1
wiki_modern_life 292.86 740 100% 465 4
wiki_arts 722.99 278 100% 162 4
wiki_society 793.94 256 100% 149 4
wiki_linguistics 520.53 528 100% 251 4
wiki_physical_science 179.40 1061 100% 797 2
wiki_history 1002.86 148 100% 106 4
early_modern_science 1248.19 196 100% 83 4
religious_translated 6518.11 35 100% 20 7
cooking 705.22 323 100% 199 3
legal_scotus 1072.32 282 100% 112 4
eu_parliament_debates 2192.38 108 100% 52 5
openstax_science 155.75 1475 100% 872 2
openstax_society 536.49 558 100% 258 4
wpa_life_histories 4013.60 71 100% 34 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.