Base Difficulty

Base difficulty: Level 170 edit

Level distribution for noun (plant_part): 28: 3 170: 13 278: 1 1010: 5 1078: 3 1090: 5 1210: 2 1399: 3

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: 1554 (weighted harmonic mean of corpus + tier signals; lower = more common)
Tier Signals
Source Tier Rank used
basic_english Basic (1 of 2) 600

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 12.79 8508 100% 4399 2
20th_books 5.26 9743 100% 9743 1
wiki_math 0.00 — — — 0
wiki_geography 0.00 — — — 0
wiki_biology 526.78 400 100% 235 2
wiki_modern_life 42.51 3387 100% 3387 1
wiki_arts 0.00 — — — 0
wiki_society 0.00 — — — 0
wiki_linguistics 409.51 445 100% 318 2
wiki_physical_science 73.80 1957 100% 1957 1
wiki_history 0.00 — — — 0
early_modern_science 68.34 2615 100% 1524 2
religious_translated 0.00 — — — 0
cooking 202.83 1053 100% 566 2
legal_scotus 18.82 6655 100% 3579 2
eu_parliament_debates 13.71 4704 100% 4704 1
openstax_science 179.54 944 100% 765 2
openstax_society 18.60 5497 100% 5497 1
wpa_life_histories 13.00 5434 100% 5434 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.