I’ll tell you a secret about dictionaries. It’s incredibly difficult to assemble a collection of words, pronunciations, and definitions. And they don’t make many lexicographers these days, and few if those are paid to do the work. So even first class efforts like OED depend on a handful of volunteers, who only have time to brush up a few definitions before each edition is published. The overwhelming majority of dictionary content is plagiarized word for word from ancient dictionaries that have passed into public domain.

This can cause unexpected misunderstandings. For example, I think there was a discussion here to the effect that a government subsidy could only be a cash payment, not a tax deduction. This based on the dictionary definition of “subsidy”. As it turns out, the definition you find in almost every English language dictionary is lifted verbatim from the original 19th century Webster’s, written long before there ever was an income tax.