Is NASA a word in Scrabble?

In official Scrabble, NASA is not a valid word because it is an acronym and proper noun. Scrabble rules generally do not allow proper nouns, abbreviations, or acronyms unless they have become common English words and are listed in the official dictionary as lowercase words. NASA stands for National Aeronautics and Space Administration, which is the United States space agency, and as a proper noun referring to a specific organization, it is capitalized and not included in the standard Scrabble word lists like NASPA Word List or Collins Scrabble Words. You cannot play NASA as a word in tournament Scrabble. However, the letters N, A, S, A can be used to form other valid words. For example, you could play words like an, as, aas, nasa is not valid, but you could play words like san, ana, and so on. If you are playing casual house rules where proper nouns are allowed, your group might permit NASA, but in official rules, it is not allowed. If you want to use those letters, look for valid anagrams or extensions that are accepted, such as sanas or anas in some word lists, though always check your specific dictionary.