Base difficulty: Level 11 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 |
Extended (2 of 2) | 1600 |
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 |
279.02 | 372 | 100% | 372 | 1 |
20th_books |
196.25 | 540 | 100% | 540 | 1 |
wiki_math |
379.96 | 371 | 100% | 371 | 1 |
wiki_geography |
781.26 | 126 | 100% | 126 | 1 |
wiki_biology |
957.22 | 101 | 100% | 101 | 1 |
wiki_modern_life |
594.69 | 159 | 100% | 159 | 1 |
wiki_arts |
512.41 | 193 | 100% | 193 | 1 |
wiki_society |
840.92 | 104 | 100% | 104 | 1 |
wiki_linguistics |
635.77 | 184 | 100% | 184 | 1 |
wiki_physical_science |
945.05 | 96 | 100% | 96 | 1 |
wiki_history |
437.22 | 233 | 100% | 233 | 1 |
early_modern_science |
488.28 | 210 | 100% | 210 | 1 |
religious_translated |
378.61 | 296 | 100% | 296 | 1 |
cooking |
51.83 | 1739 | 100% | 1739 | 1 |
legal_scotus |
845.77 | 124 | 100% | 124 | 1 |
eu_parliament_debates |
773.12 | 154 | 100% | 154 | 1 |
openstax_science |
981.65 | 91 | 100% | 91 | 1 |
openstax_society |
658.08 | 165 | 100% | 165 | 1 |
wpa_life_histories |
87.84 | 1144 | 100% | 1144 | 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.