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: 360 (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 368.43 377 100% 272 2
20th_books 320.56 484 100% 323 2
wiki_math 378.80 722 100% 361 2
wiki_geography 0.00 — — — 0
wiki_biology 32.83 3789 100% 3789 1
wiki_modern_life 44.66 3232 100% 3232 1
wiki_arts 153.29 1540 100% 908 2
wiki_society 367.49 664 100% 349 2
wiki_linguistics 407.36 451 100% 320 2
wiki_physical_science 98.14 2131 100% 1382 2
wiki_history 157.79 1302 100% 850 2
early_modern_science 386.52 346 100% 285 2
religious_translated 146.72 1053 100% 686 2
cooking 28.17 2522 100% 2522 1
legal_scotus 1553.51 80 100% 68 2
eu_parliament_debates 1108.94 129 100% 103 2
openstax_science 203.23 1331 100% 679 2
openstax_society 504.31 477 100% 267 2
wpa_life_histories 116.30 1436 100% 818 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.