Base difficulty: Level 226 edit
Level distribution for preposition (preposition_other): 6: 10 10: 7 11: 8 14: 1 18: 4 23: 2 226: 5 1080: 1 1120: 1
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Tier Signals
| Source | Tier | Rank used |
|---|---|---|
basic_english |
Basic (1 of 2) | 600 |
cambridge_yle |
Movers (2 of 3) | 750 |
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 |
105.13 | 90 | 8% | 1170 downrated | 1 |
20th_books |
108.07 | 87 | 8% | 1131 downrated | 1 |
wiki_math |
38.29 | 276 | 8% | 3588 downrated | 1 |
wiki_geography |
147.12 | 40 | 8% | 520 downrated | 1 |
wiki_biology |
87.56 | 82 | 8% | 1066 downrated | 1 |
wiki_modern_life |
88.72 | 71 | 8% | 923 downrated | 1 |
wiki_arts |
121.73 | 56 | 8% | 728 downrated | 1 |
wiki_society |
97.35 | 62 | 8% | 806 downrated | 1 |
wiki_linguistics |
87.93 | 93 | 8% | 1209 downrated | 1 |
wiki_physical_science |
71.09 | 100 | 8% | 1300 downrated | 1 |
wiki_history |
233.71 | 28 | 8% | 364 downrated | 1 |
early_modern_science |
82.51 | 99 | 8% | 1287 downrated | 1 |
religious_translated |
93.79 | 104 | 8% | 1352 downrated | 1 |
cooking |
78.36 | 158 | 8% | 2054 downrated | 1 |
legal_scotus |
75.52 | 107 | 8% | 1391 downrated | 1 |
eu_parliament_debates |
39.87 | 238 | 8% | 3094 downrated | 1 |
openstax_science |
63.59 | 110 | 8% | 1430 downrated | 1 |
openstax_society |
80.83 | 96 | 8% | 1248 downrated | 1 |
wpa_life_histories |
145.41 | 73 | 8% | 949 downrated | 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.