Acceptable words are the primary entries in some chosen dictionary, and all of their inflected forms. Words that are hyphenated, capitalized (such as proper nouns), or apostrophized are not allowed, unless they also appear as acceptable entries; JACK is a proper noun, but the word "" is acceptable because it has other usages as a common noun (automotive, vexillological, etc.) and verb that are acceptable. Acronyms or abbreviations, other than those that have acceptable entries (such as "AWOL", "RADAR", "LASER", and "SCUBA") are not allowed. Variant spellings, slang or offensive terms, archaic or obsolete terms, and specialized jargon words are allowed if they meet all other criteria for acceptability, but archaic spellings (e.g. "NEEDE" for "NEED") are generally not allowed. Foreign words are not allowed in English-language "Scrabble" unless they have been incorporated into the English language, as with PATISSERIE, KILIM, and QI. Vulgar and offensive words are generally excluded from the OSPD4 but allowed in club and tournament play.