A Word Ladder is a word game where players transform one word into another by changing one letter at a time. Each step must result in a valid word, and the goal is to reach the target word in the fewest steps possible. For example, to change "cat" to "dog," players might go from "cat" to "cot," then "cog," and finally "dog." This game encourages vocabulary development and problem-solving skills. It can be played individually or in groups, making it a fun and educational activity for all ages. Word Ladders can be found in puzzles, educational materials, and online games.