文も字じクラスもじクラスMeanings1nouncharacter classcomputingComputing term for a set of characters in regular expressions or programming, such as [a-z] or \d.正せい規き表ひょう現げんで文も字じクラスを使つかうと、特とく定ていの文も字じ集しゅう合ごうを簡かん単たんに指し定ていできる。Using character classes in regular expressions makes it easy to specify a particular set of characters.