Base Difficulty

Base difficulty: Level 3 edit

Level distribution for adjective (color): 3: 8 27: 3 1120: 2

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: 1171 (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 133.89 385 50% 770 downrated 1
20th_books 183.92 301 50% 602 downrated 1
wiki_math 23.61 2112 50% 4224 downrated 1
wiki_geography 56.33 1227 50% 2454 downrated 1
wiki_biology 390.54 123 50% 246 downrated 1
wiki_modern_life 85.08 799 50% 1598 downrated 1
wiki_arts 62.19 1090 50% 2180 downrated 1
wiki_society 40.18 1753 50% 3506 downrated 1
wiki_linguistics 32.30 1971 50% 3942 downrated 1
wiki_physical_science 230.12 266 50% 532 downrated 1
wiki_history 30.41 2255 50% 4510 downrated 1
early_modern_science 231.88 221 50% 442 downrated 1
religious_translated 46.89 1101 50% 2202 downrated 1
cooking 206.16 379 50% 758 downrated 1
legal_scotus 5.46 6569 50% 13138 downrated 1
eu_parliament_debates 5.36 5416 50% 10832 downrated 1
openstax_science 213.69 273 50% 546 downrated 1
openstax_society 22.10 2878 50% 5756 downrated 1
wpa_life_histories 125.02 443 50% 886 downrated 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.