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: 1718 (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 49.32 963 50% 1926 downrated 1
20th_books 88.45 593 50% 1186 downrated 1
wiki_math 0.00 — — — 0
wiki_geography 19.72 3451 50% 6902 downrated 1
wiki_biology 215.76 255 50% 510 downrated 1
wiki_modern_life 24.37 2988 50% 5976 downrated 1
wiki_arts 0.00 — — — 0
wiki_society 0.00 — — — 0
wiki_linguistics 0.00 — — — 0
wiki_physical_science 73.92 988 50% 1976 downrated 1
wiki_history 0.00 — — — 0
early_modern_science 31.70 1804 50% 3608 downrated 1
religious_translated 0.00 — — — 0
cooking 833.86 95 50% 190 downrated 1
legal_scotus 0.00 — — — 0
eu_parliament_debates 0.00 — — — 0
openstax_science 31.38 2115 50% 4230 downrated 1
openstax_society 0.00 — — — 0
wpa_life_histories 53.55 954 50% 1908 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.