Words that hold a secret twin, revealed only when read in reverse.
A word that forms an entirely different word when its letters are reversed. The term itself is "palindromes" spelled backward — a self-referential wink from the English language.
First documented in recreational linguistics; also called anadromes, heteropalindromes, or reversals.
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Perhaps the most celebrated semordnilap — one is what you reach for when you are the other.
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Words that reverse across 9 languages. A global linguistic phenomenon.
Speed challenges, pattern recognition, and competitive word games.