This list includes word prevalence ratings. Word prevalence refers to the number of people who know the word. The measure was obtained on the basis of an online crowdsourcing study involving over 220,000 people.
Brysbaert, Marc, Paweł Mandera, Samantha F McCormick & Emmanuel Keuleers. 2019. Word prevalence norms for 62,000 English lemmas. Behavior Research Methods 51(2). 467-479.