A Word So Odd, It's One of a Kind

At first glance, bookkeeper seems pretty ordinary. But look closer, and you’ll spot a record-breaking quirk hiding in plain sight. It’s the only word in English with three pairs of double letters in a row: oo, kk, and ee.

Think about that. Six letters in a row, all doubled. It's like a spelling staircase built out of twins. No other word in the English language pulls off this triple-double trick.

Two Additional Fun Word Facts

• The longest word with only one vowel is strengths. Just one little “e” doing all the work.

• Uncopyrightable is the longest English word you can spell without repeating a single letter.

English is full of surprises and bookkeeper is a standout example of just how weird and wonderful it can be.