Base Difficulty

Base difficulty: Level 295 edit

Level distribution for noun (communication_information): 5: 1 19: 6 295: 28 350: 1 370: 1 380: 1 400: 38 420: 1 440: 35 1000: 8 1040: 1 1060: 2 1070: 10 1080: 1 1110: 23 1120: 2 1207: 1 1220: 1

Per-Language Difficulty Overrides

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

Add Difficulty Override
-1 to exclude, 1-1299 for level
Frequency and Tier Signals
Combined Frequency Rank: — (run python -m storage.admin --calc-ranks to populate)
Tier Signals
Source Tier Rank used
basic_english Extended (2 of 2) 1600
cambridge_yle Flyers (3 of 3) 1200
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 187.16 532 100% 532 1
20th_books 106.84 900 100% 900 1
wiki_math 234.97 585 100% 585 1
wiki_geography 115.60 1108 100% 1108 1
wiki_biology 86.54 1611 100% 1611 1
wiki_modern_life 143.61 966 100% 966 1
wiki_arts 310.92 337 100% 337 1
wiki_society 330.42 325 100% 325 1
wiki_linguistics 816.27 146 100% 146 1
wiki_physical_science 135.90 1063 100% 1063 1
wiki_history 229.00 460 100% 460 1
early_modern_science 377.85 282 100% 282 1
religious_translated 189.04 566 100% 566 1
cooking 57.78 1628 100% 1628 1
legal_scotus 663.93 150 100% 150 1
eu_parliament_debates 450.59 269 100% 269 1
openstax_science 60.15 2194 100% 2194 1
openstax_society 153.71 924 100% 924 1
wpa_life_histories 135.81 761 100% 761 1

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.