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We counted 149.8 million letters of real Armenian. Learn the 39 letters in this order and you can read 61% of words after 24 letters, not 21%.

225 spelling bee words in nine lists, from 1st grade to regional bees, each with the spot where spellers slip, plus a plan for the official 450-word list.

We counted 142.7 million letters of real Thai. Learn the 44 consonants in this order and you can sound out 60% of words after two days, not 6%.

We counted 1,910 Latin phrases in ten years of American books. These are the 100 English really uses, with meanings, how to say them and where they come from.

The 100 most common Korean words, counted in 12 million words of real Korean, with romanization, meanings and how much of a real text they cover.

We counted the 292 words on Google's top Australian slang lists in Aussie web text from 2002 and 2020. Here's what Aussies really say, and what to skip.

We measured 307 British slang words from Google's top lists in British and American books. Here are the ones Brits really use, and the ones to skip.

We counted 183 fancy words from the top Google lists in 10 years of American books. These 48 sound smart and still get understood; 10 are best skipped.

We counted every Words in Context question in College Board's 8 current SAT practice tests: the 82 right answers, the decoys and how common each word really is.