Base Difficulty

Base difficulty: Level 19 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: 1227 (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 Movers (2 of 3) 750
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 15.03 4877 100% 4877 1
20th_books 23.77 4173 100% 2852 2
wiki_math 786.48 275 100% 174 2
wiki_geography 307.48 743 100% 432 2
wiki_biology 0.00 — — — 0
wiki_modern_life 42.94 3352 100% 3352 1
wiki_arts 0.00 — — — 0
wiki_society 25.29 4987 100% 4987 1
wiki_linguistics 60.19 2873 100% 1739 2
wiki_physical_science 92.12 2595 100% 1454 2
wiki_history 34.27 3840 100% 3840 1
early_modern_science 47.84 2314 100% 2314 1
religious_translated 0.00 — — — 0
cooking 0.00 — — — 0
legal_scotus 18.42 6635 100% 3611 2
eu_parliament_debates 22.42 3486 100% 3486 1
openstax_science 122.19 1736 100% 1087 2
openstax_society 116.16 1496 100% 1133 2
wpa_life_histories 32.04 3518 100% 2321 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.