Base Difficulty

Base difficulty: Level 295 edit

Level distribution for noun (communication_information): 5: 1 19: 6 295: 28 370: 1 400: 36 420: 1 440: 32 460: 1 470: 2 1000: 8 1040: 1 1060: 2 1070: 10 1080: 1 1110: 16 1120: 2 1207: 1 1220: 1 1399: 83

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: 238 (weighted harmonic mean of corpus + tier signals; lower = more common)
Tier Signals
Source Tier Rank used
basic_english Extended (2 of 2) 1600
cefr B1 (3 of 6) 4200

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 74.77 1570 100% 1163 2
20th_books 57.21 2200 100% 1434 2
wiki_math 1679.20 130 100% 77 2
wiki_geography 548.23 371 100% 222 2
wiki_biology 460.39 365 100% 272 2
wiki_modern_life 841.80 158 100% 120 2
wiki_arts 750.60 191 100% 141 2
wiki_society 1315.41 101 100% 71 2
wiki_linguistics 1124.82 190 100% 107 2
wiki_physical_science 970.15 192 100% 121 2
wiki_history 417.37 537 100% 294 2
early_modern_science 164.02 1208 100% 708 2
religious_translated 107.82 1370 100% 920 2
cooking 63.10 2267 100% 1180 2
legal_scotus 912.56 241 100% 125 2
eu_parliament_debates 636.92 244 100% 192 2
openstax_science 417.26 581 100% 338 2
openstax_society 601.45 417 100% 213 2
wpa_life_histories 75.29 2029 100% 1184 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.