Base Difficulty

Base difficulty: Level 140 edit

Level distribution for noun (technology_digital): 140: 21 360: 1 1040: 13 1399: 40

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: 2787 (weighted harmonic mean of corpus + tier signals; lower = more common)
Tier Signals
Source Tier Rank used
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 5.25 6886 57% 12102 downrated 1
20th_books 5.27 6610 57% 11617 downrated 1
wiki_math 11.83 3523 57% 6192 downrated 1
wiki_geography 0.00 — — — 0
wiki_biology 0.00 — — — 0
wiki_modern_life 143.53 800 57% 970 downrated 2
wiki_arts 0.00 — — — 0
wiki_society 0.00 — — — 0
wiki_linguistics 16.21 3578 57% 6288 downrated 1
wiki_physical_science 0.00 — — — 0
wiki_history 0.00 — — — 0
early_modern_science 0.00 — — — 0
religious_translated 0.00 — — — 0
cooking 0.00 — — — 0
legal_scotus 134.62 654 57% 938 downrated 2
eu_parliament_debates 0.00 — — — 0
openstax_science 64.32 1955 57% 2032 downrated 2
openstax_society 0.00 — — — 0
wpa_life_histories 38.25 1622 57% 2350 downrated 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.