The question of a three-letter string’s validity in the game of Scrabble hinges on its presence in the official Scrabble dictionary. This lexicon contains permissible words, including proper nouns, abbreviations, and other terms that might not be found in standard dictionaries. For example, “XOR,” a term used in computer programming, is a valid Scrabble word.
Determining a word’s validity is crucial for fair play. Knowing which letter combinations are acceptable prevents disputes and ensures accurate scoring. The official dictionaries are regularly updated to reflect evolving language and incorporate new terms, adding a dynamic element to the game. This continual evolution requires players to stay abreast of the latest word lists. Consulting resources like the official Scrabble dictionary or reputable online checkers is vital for competitive play and enhances the overall experience. Understanding the historical context and evolution of acceptable words provides deeper appreciation for the game’s intricacies.