Base difficulty: Level 10 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 |
Starters (1 of 3) | 325 |
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 |
1917.56 | 67 | 100% | 67 | 1 |
20th_books |
2481.37 | 56 | 100% | 56 | 1 |
wiki_math |
741.44 | 181 | 100% | 181 | 1 |
wiki_geography |
1431.72 | 58 | 100% | 58 | 1 |
wiki_biology |
1419.05 | 65 | 100% | 65 | 1 |
wiki_modern_life |
952.37 | 88 | 100% | 88 | 1 |
wiki_arts |
1139.45 | 76 | 100% | 76 | 1 |
wiki_society |
1164.38 | 68 | 100% | 68 | 1 |
wiki_linguistics |
769.05 | 158 | 100% | 158 | 1 |
wiki_physical_science |
1573.07 | 58 | 100% | 58 | 1 |
wiki_history |
1325.36 | 65 | 100% | 65 | 1 |
early_modern_science |
1618.22 | 72 | 100% | 72 | 1 |
religious_translated |
788.00 | 159 | 100% | 159 | 1 |
cooking |
1665.46 | 96 | 100% | 96 | 1 |
legal_scotus |
816.22 | 127 | 100% | 127 | 1 |
eu_parliament_debates |
1792.82 | 65 | 100% | 65 | 1 |
openstax_science |
1615.43 | 61 | 100% | 61 | 1 |
openstax_society |
2120.98 | 50 | 100% | 50 | 1 |
wpa_life_histories |
3139.53 | 46 | 100% | 46 | 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.