hardness en

Word token #9588

Lemmas using this token 0 form links
No lemma uses this token yet. The corpora and tier sources below still measure the string — nothing in this database claims its frequency.
Corpus frequency
Corpus Rank Freq. / M
wiki_physical_science 2469 54.8 Word frequency data from Wikipedia Level 4 physical science and molecular biology articles
19th_books 9588 5.2 Word frequency data from 19th century books