Base Difficulty

Base difficulty: Level 275 edit

Level distribution for noun (concept_idea): 19: 2 20: 3 26: 1 27: 1 221: 29 270: 31 274: 37 275: 31 280: 29 380: 2 1000: 1 1030: 1 1060: 5 1070: 6 1110: 7 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 Flyers (3 of 3) 1200

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 19.77 3805 100% 3805 1
20th_books 75.21 1219 100% 1219 1
wiki_math 0.00 — — — 0
wiki_geography 0.00 — — — 0
wiki_biology 0.00 — — — 0
wiki_modern_life 60.00 2424 100% 2424 1
wiki_arts 46.94 2737 100% 2737 1
wiki_society 67.76 1985 100% 1985 1
wiki_linguistics 24.14 3758 100% 3758 1
wiki_physical_science 0.00 — — — 0
wiki_history 70.25 1853 100% 1853 1
early_modern_science 0.00 — — — 0
religious_translated 0.00 — — — 0
cooking 0.00 — — — 0
legal_scotus 89.11 1419 100% 1419 1
eu_parliament_debates 171.77 690 100% 690 1
openstax_science 48.12 2628 100% 2628 1
openstax_society 315.24 402 100% 402 1
wpa_life_histories 641.80 185 100% 185 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.