[robsh]

Agreed. When I type a good word that isn’t accepted, I usually just stop playing that days puzzle. My guess is that Sam is not very scientifically literate. Simple weather words like cyclonic or adiabatic, advection, no dice. And then you get some pretty obscure literary words.

Makes me want to make a free clone that includes science words, and isn’t afraid of the letter S.

[stavros]

I think your definition of "simple" doesn't agree with the average person's. I guarantee you that 98% of people don't know the word "adiabatic".

[avalys]

It’s a very common word in many technical domains. Not like it’s a guy’s name or something.

[bobthepanda]

It is also very culturally biased; some loanwords are more present than others

[dhc02]

The omissions that kill me are common nautical terms.

[1over137]

And so many "non-American" words are rejected too like: whinge, colour, metre, etc.

[CamperBob2]

"Whinge" is just a plain old misspelling of "Whine," nothing more or less. We don't need "Whinge" to become a word; we already have "Whine."

[lozenge]

It feels like they could just use something like the Google Ngram viewer to filter the words.

[avalys]

I’m still pissed about advection!

[arijun]

What does “isn’t afraid of the letter S” mean?

[spyspy]

spelling bee puzzles never contain S. Originally they didn't include puzzles with e+d or i+n+g either.