Base Difficulty

Base difficulty: Level 1218 edit

Level distribution for noun (strategic_tactic): 1200: 2 1201: 4 1202: 5 1206: 1 1207: 2 1211: 3 1214: 1 1218: 3 1220: 1 1399: 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: 10356 (weighted harmonic mean of corpus + tier signals; lower = more common)
Tier Signals
Source Tier Rank used
basic_english Basic (1 of 2) 600
cefr A2 (2 of 6) 2100

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 1.52 2100 3% 20000 capped 2
20th_books 1.31 2143 3% 20000 capped 2
wiki_math 0.00 — — — 0
wiki_geography 4.78 1568 3% 9000 capped 2
wiki_biology 6.49 1064 3% 9000 capped 2
wiki_modern_life 6.16 942 3% 10000 capped 2
wiki_arts 3.14 1972 3% 10000 capped 2
wiki_society 4.04 1804 3% 11000 capped 2
wiki_linguistics 0.00 — — — 0
wiki_physical_science 1.13 3313 3% 8000 capped 1
wiki_history 10.32 472 3% 9000 capped 2
early_modern_science 1.85 2412 3% 10400 capped 2
religious_translated 1.06 2553 3% 10400 capped 1
cooking 0.00 — — — 0
legal_scotus 2.10 2216 3% 20000 capped 2
eu_parliament_debates 2.94 1979 3% 11000 capped 2
openstax_science 1.97 3054 3% 11000 capped 2
openstax_society 5.23 1359 3% 11000 capped 2
wpa_life_histories 0.91 3090 3% 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.