The Triple Double Letters Word

Think of a common English word that contains three pairs of double letters in a row, one pair right after another (like AABBCC).
Hyphenated words and names don’t count.
💡 Hint

It’s a job title. This person keeps track of a company’s money in written records.

Reveal answer

BOOKKEEPER (also BOOKKEEPING).

B-O-O-K-K-E-E-P-E-R contains OO, KK and EE back to back. It happens because the word joins “book” (which ends in K) with “keeper” (which starts with K and contains EE). That double K right at the seam is what links the three pairs together. “Bookkeeping” works for the same reason.

Did you know?Bookkeeper is often cited as one of the very few everyday English words with three consecutive double letters. Some people suggest made-up compounds or hyphenated forms, but the puzzle rules out those. It’s a nice example of how compound words create letter patterns that would almost never appear in a single root word.

About This Puzzle

Double letters are everywhere in English: balloon, coffee, address. But three pairs of double letters in a row? That’s rare. This hard puzzle asks you to find a common word that does it.

How to Think About It

Words with double letters often come from joining two smaller words together. Think of compound words for jobs, where the first part ends in a double letter and the second part starts with one. A good place to look is work done with ledgers and accounts.

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