Base Difficulty

Base difficulty: Level 10 edit

Level distribution for noun (furniture): 10: 2 19: 1 25: 8 119: 11 1399: 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, 1-1399 for level
Frequency and Tier Signals
Combined Frequency Rank: 567 (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 371.01 314 100% 281 2
20th_books 483.52 262 100% 232 2
wiki_math 339.74 627 100% 401 2
wiki_geography 31.26 4241 100% 4241 1
wiki_biology 165.82 825 100% 825 1
wiki_modern_life 284.31 698 100% 481 2
wiki_arts 56.29 2476 100% 2476 1
wiki_society 44.49 3121 100% 3121 1
wiki_linguistics 308.58 478 100% 420 2
wiki_physical_science 195.64 740 100% 740 1
wiki_history 34.08 3850 100% 3850 1
early_modern_science 163.19 1145 100% 710 2
religious_translated 91.27 1550 100% 1067 2
cooking 602.70 274 100% 243 2
legal_scotus 10.93 6575 100% 6575 1
eu_parliament_debates 103.10 1297 100% 1019 2
openstax_science 205.18 815 100% 674 2
openstax_society 49.97 2624 100% 2624 1
wpa_life_histories 260.12 488 100% 400 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.