Are there any words that are not allowed in Scrabble?

Some types of words are not allowed, like foreign words that do not appear in official English-language dictionaries, abbreviations, suffixes, prefixes, hyphenated words, any word requiring an apostrophe, and proper nouns (or any word ordinarily requiring a capital letter). Which Scrabble letter is worth the most?
For More Information Please Refer:


You May Also Like to Read: