Base Difficulty

Base difficulty: Level 22 edit

Level distribution for noun (family_relation): 22: 4 30: 48

Per-Language Difficulty Overrides

No difficulty overrides set. The base difficulty level will be used for all languages.

Add Difficulty Override
-1 to exclude, 1-36 for level
Frequency and Tier Signals
Combined Frequency Rank: 659 (weighted harmonic mean of corpus + tier signals; lower = more common)
Tier Signals
Source Tier Rank used
basic_english Extended (2 of 2) 1600
cambridge_yle Starters (1 of 3) 325

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 365.31 260 50% 292 downrated 2
20th_books 386.00 272 50% 290 downrated 2
wiki_vital 235.61 307 50% 470 downrated 2
wiki_math 24.88 3014 50% 3101 downrated 2
wiki_geography 109.94 681 50% 1132 downrated 2
wiki_biology 45.96 1516 50% 3103 downrated 1
wiki_modern_life 306.58 239 50% 356 downrated 2
early_modern_science 94.56 937 50% 1183 downrated 2
religious_translated 478.89 166 50% 248 downrated 2
cooking 44.75 1228 50% 2181 downrated 1
legal_scotus 239.32 529 50% 530 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.