The acceptable words in the game are the words in the resource material being used in the game. The words that have hyphens or apostrophized and capitalized words are prohibited. These words are only accepted if they appear as acceptable entries if they can be used in more ways than one. For example, the word Jack is a noun but may also be used as a verb. Capitalized words in most cases are proper nouns.
Acronyms and abbreviations are prohibited except for the few that are acceptable like radar or laser. Different spellings of words, slang, obsolete, archaic, specialized jargon or offensive words are allowed in the event that they meet all other requirements that have been mentioned. Foreign language words are prohibited in English language Scrabble. Some foreign language words, however, are acceptable if they have been incorporated in the English language; like the word cliché.