Base Difficulty

Base difficulty: Level 16 edit

Level distribution for noun (mental_construct): 16: 9 24: 4 27: 1 30: 9

Per-Language Difficulty Overrides

No difficulty overrides set. The base difficulty level will be used for all languages.

Add Difficulty Override
-1 to exclude, 1-36 for level
Frequency and Tier Signals
Combined Frequency Rank: 472 (weighted harmonic mean of corpus + tier signals; lower = more common)
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 rank Forms
19th_books 1466.69 187 3
20th_books 1366.98 206 3
cooking 0.00 — 0
wiki_vital 266.55 920 2