There are various synonyms for the word "noughts," which is typically used to refer to the digit 0 or a game played with five Xs and five Os on a grid. Some of the synonyms include zero, nil, zilch, naught, nada, cipher, and zip. These words are often used interchangeably in specific contexts. For instance, "zero" is a mathematical term frequently used in arithmetic and algebra, while "naught" finds application in literature, especially poetry. The word "cipher" denotes a secret code, while "zip" and "nada" are more colloquial and used in everyday conversations. In summary, while these words refer to the same thing, they have slightly different shades of meaning, and their usage depends on the context.