Words connected one letter at a timeSourced
Not region-specific · English meaning
Each step must still be a word
A word ladder connects a starting word to a target by changing one letter at each step, with every intermediate form an existing word. Lewis Carroll published puzzles in 1879. The restriction turns a simple rewrite into a search for a sequence of valid neighbors.
Small changes become a route between different words.
Summary / translation: Unbubly · CC BY-SA 4.0
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Word ladder · Wikimedia contributors
Adapted, summarized and translated from the source. Adapted text is also available under CC BY-SA 4.0.
Reviewed: 2026-10-05