Base difficulty: Level 18 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 |
|---|---|---|
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 |
189.88 | 522 | 100% | 522 | 1 |
20th_books |
187.62 | 563 | 100% | 563 | 1 |
wiki_math |
62.36 | 1731 | 100% | 1731 | 1 |
wiki_geography |
97.62 | 1436 | 100% | 1436 | 1 |
wiki_biology |
54.84 | 2477 | 100% | 2477 | 1 |
wiki_modern_life |
120.87 | 1197 | 100% | 1197 | 1 |
wiki_arts |
134.13 | 999 | 100% | 999 | 1 |
wiki_society |
158.28 | 834 | 100% | 834 | 1 |
wiki_linguistics |
77.93 | 1641 | 100% | 1641 | 1 |
wiki_physical_science |
135.54 | 1076 | 100% | 1076 | 1 |
wiki_history |
116.64 | 1124 | 100% | 1124 | 1 |
early_modern_science |
213.76 | 506 | 100% | 506 | 1 |
religious_translated |
254.73 | 432 | 100% | 432 | 1 |
cooking |
0.00 | — | — | — | 0 |
legal_scotus |
289.01 | 429 | 100% | 429 | 1 |
eu_parliament_debates |
121.54 | 986 | 100% | 986 | 1 |
openstax_science |
138.39 | 1027 | 100% | 1027 | 1 |
openstax_society |
190.56 | 744 | 100% | 744 | 1 |
wpa_life_histories |
47.06 | 1978 | 100% | 1978 | 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.