Base difficulty: Level 265 edit
Level distribution for noun (mental_construct): 265: 27 300: 1 390: 2 460: 1 1060: 6 1070: 1 1120: 1 1399: 30
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Tier Signals
| Source | Tier | Rank used |
|---|---|---|
basic_english |
Basic (1 of 2) | 600 |
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 |
130.68 | 729 | 100% | 729 | 1 |
20th_books |
121.37 | 821 | 100% | 821 | 1 |
wiki_math |
136.28 | 980 | 100% | 980 | 1 |
wiki_geography |
33.69 | 4012 | 100% | 4012 | 1 |
wiki_biology |
90.92 | 1549 | 100% | 1549 | 1 |
wiki_modern_life |
156.51 | 882 | 100% | 882 | 1 |
wiki_arts |
148.67 | 894 | 100% | 894 | 1 |
wiki_society |
402.86 | 262 | 100% | 262 | 1 |
wiki_linguistics |
61.80 | 2039 | 100% | 2039 | 1 |
wiki_physical_science |
114.96 | 1281 | 100% | 1281 | 1 |
wiki_history |
135.41 | 983 | 100% | 983 | 1 |
early_modern_science |
164.40 | 672 | 100% | 672 | 1 |
religious_translated |
499.01 | 241 | 100% | 241 | 1 |
cooking |
0.00 | — | — | — | 0 |
legal_scotus |
112.32 | 1164 | 100% | 1164 | 1 |
eu_parliament_debates |
70.54 | 1585 | 100% | 1585 | 1 |
openstax_science |
132.16 | 1075 | 100% | 1075 | 1 |
openstax_society |
305.48 | 421 | 100% | 421 | 1 |
wpa_life_histories |
56.69 | 1931 | 100% | 1531 | 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.