Base Difficulty

Base difficulty: Level 265 edit

Level distribution for noun (mental_construct): 265: 27 390: 2 460: 1 1060: 6 1070: 1 1120: 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
cambridge_yle Movers (2 of 3) 750

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 265.99 385 100% 385 1
20th_books 266.23 391 100% 391 1
wiki_math 232.65 587 100% 587 1
wiki_geography 43.44 2785 100% 2785 1
wiki_biology 49.61 2703 100% 2703 1
wiki_modern_life 109.61 1329 100% 1329 1
wiki_arts 233.70 496 100% 496 1
wiki_society 341.17 314 100% 314 1
wiki_linguistics 133.05 930 100% 930 1
wiki_physical_science 0.00 — — — 0
wiki_history 207.80 541 100% 541 1
early_modern_science 199.47 537 100% 537 1
religious_translated 92.15 1101 100% 1101 1
cooking 58.92 1600 100% 1600 1
legal_scotus 37.06 2886 100% 2886 1
eu_parliament_debates 221.35 560 100% 560 1
openstax_science 117.81 1194 100% 1194 1
openstax_society 284.34 458 100% 458 1
wpa_life_histories 160.74 657 100% 657 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.