The question of a two-letter combination’s acceptability in the game of Scrabble hinges on its presence in the official Scrabble dictionary. For example, common two-letter words like “at,” “in,” or “ox” are valid plays, while less common or invented combinations are not. Reference materials like the Official Scrabble Players Dictionary (OSPD) or Collins Scrabble Words (CSW) provide definitive lists of permissible words.
Determining word validity is crucial for fair play and accurate scoring. Knowledge of acceptable two-letter words provides a strategic advantage, enabling players to maximize point potential, especially in situations with limited board space or when using bonus squares effectively. Historically, the evolution of official Scrabble dictionaries has reflected changes in language usage, with new additions and occasional removals shaping gameplay over time.