Base Difficulty

Base difficulty: Level 1205 edit

Level distribution for noun (symbolic_element): 330: 1 405: 1 450: 1 460: 13 1000: 3 1050: 1 1060: 1 1110: 12 1205: 5 1213: 1 1220: 1 1223: 3 1399: 16

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: 10356 (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 Flyers (3 of 3) 1200
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 0.14 2910 0% 20000 capped 1
20th_books 0.51 1107 0% 20000 capped 2
wiki_math 0.00 — — — 0
wiki_geography 1.02 1252 0% 9000 capped 2
wiki_biology 0.00 — — — 0
wiki_modern_life 1.04 1344 0% 10000 capped 2
wiki_arts 0.27 4673 0% 10000 capped 2
wiki_society 0.43 2686 0% 11000 capped 2
wiki_linguistics 0.00 — — — 0
wiki_physical_science 0.00 — — — 0
wiki_history 0.21 3202 0% 9000 capped 1
early_modern_science 0.00 — — — 0
religious_translated 0.00 — — — 0
cooking 0.00 — — — 0
legal_scotus 0.03 8409 0% 20000 capped 1
eu_parliament_debates 0.09 4072 0% 11000 capped 1
openstax_science 0.00 — — — 0
openstax_society 0.10 5229 0% 11000 capped 1
wpa_life_histories 0.38 1547 0% 20000 capped 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.